Here is my take on the matches that you did write ups for 3nig. I disagree with you on some of them and agree on others. Thought it might be good to have another opinion on the matches however.
Vs Blanka Rog def still wins. All you have to do is walk forward and block and blanka gets shut down. Veserius got a lot of it right. If you walk forward and block you can either punish slide on block or react w/ stand forward to stuff it. You can still punish blocked ball with U1 most of the time. Down fierce everything. WIth Rainbow ball he can make u whiff your down HP and whiff punish but it is very difficult. Jab stuffs all hops. If you get knocked down get ready to tech. Dont cr. tech his throws after ambiguous hops, you need to stand tech it. The unblockable no longer works, or is difficult to pull off, and it is pretty easy to block ambiguous U1 after fwd throw if you are used to it. In fact, if you do block U1, you can get a fat punish by just holding up fwd. I like to do jump RH, cr.jab, st.MP. EX RU into w/e. Most importantly DO NOT DASH PUNCH AT HIM. A good blanka will slide you out of it and start his shenanigans. lp.lp.mp is ur BNB in this match, you gotta be able to land it. I find that the only move that gives me trouble in this match is blanka’s stand strong, I can’t seem to get a consistent whiff punish with sweep. 
VS Abel, I would have to say that Abel wins this match 6-4/5.5-4.5. It’s funny before last Saturday I would have said that this is 5-5, but I played Juicebox in about 50-75 matches rog vs abel and rog vs juri. Even box thinks this is bad for boxer now saying that it’s 6-4. Granted his reactions are extremely good… The only option that you have truthfully is to bait step kick and whiff punish. Everything else got shut down for me. Even if I stood just outside stand jab range and threw stand jabs to discourage him moving forward or using a move, I got whiff punished with cr mk buffered with COD. His oki game is too strong and you can’t hit hard enough as you must abandon your charge to footsie his step kick. What you have to keep in mind in this match is what you do when you block step kick. It is a horrible situation for rog imo. If you mash jab or throw(both 3 frames) that will beat all normal moves or specials from abel other than non-ex tornado. If you think he’s going to non-ex tornado you hold up. DO NOT BACKDASH you will get reaction stepkicked punished and get put back in the same situation best case scenario.
Vs Gen. I actually asked Eduardo about this match last week on his stream and he says he thinks Gen has the advantage. I would agree that many people lose to Gen regardless of character because they are unsure of how to fight him. On a basic level though gen crouch or stand strong buffered into hands keeps rog out extremely well in my experience. Gen has very good normals in mantis and people don’t even know it. (Stand strong 4 frames of start up, plus 5 on block!) 3 frame stand jab, and cr hk in crane is great for anti air on rog. Also, due to rog’s increased pushback when crouch blocking. Blocking anything canceled into hands puts him extremely far away. It’s tough to get in on a good Gen player, at any point in time crouch strong, stand strong, or stand fwd, CH into hands into super/ultra can do 500+ damage.
Vs Guile – Easy 6-4 for Guile imo. PR says this is rog’s worst match, and with him having significant experience against Dieminion, I’d say he’s prob right. Yeah, like you said you can push him to corner with extended combos. But if you get close enough to do that then Guile failed. You said, “So if I jump over a boom he has to normal, and then with Balrog he has to pick the right normal or he deals with a CH” Honestly, there is absolutely no reason Guile should get hit unless you jumped an EX boom, or if he threw it way late after you jumped. His lp boom starts up in 9frames, and recovers in 29, this is significantly faster than the rest of the plasma in the game. Plus, he has a myriad of 4-5 frame normals to anti air with and an air throw. The fact that flash kick is 4frames, fadc’able, and hits you when you are crouching in front of him (unlike jackknife maximum) makes meaty pressure a bit more complicated too. When I lose to guile I can’t get close to him. When I win, it’s not because I pushed him into the corner with a long combo. It’s because I walked him there and then he gave me the life lead trying to get out and I downback it and keep him there.
Vs Ibuki. I think Rog has a slight advantage. She doesn’t have unblockables, afaik, that work on rog. Her normals are good, but lose to boxer. Low jab gives her problems if you discourage her normal slide first w/ standing mk. Tsumuji pressure gets shut down if they try to extend it by EX rush punching. Watch out for stand short buffered into a special move though. You need to react to the illusion dash, it’s very unsafe. Learn her vortex setups and you shouldn’t have much of a problem. Often, whether a kunai hits in back or in front is determined by if she SJC or not(or her regular jump ins for that matter). Look for the dust at her feet and block accordingly. She can’t os behind a kunai so if you get neckbreaker’d out of TAP you know it’s a reaction. Her OHs are slow enough to react to. Also remember that if you get fwd thrown, 99% of the time an instant kunai hits in front but looks like a cross up.
Vs Cammy. I play Cammy on the side, and this is most definitely advantage Balrog. If you get vortexed as Boxer, then you should play Cammy for a little bit. Try to set up the vortex on Boxer in training mode and see how to block it. It is harder for her to cross up dive kick than on any other character against boxer. Most of the time you will be blocking dives in front. Also, because of boxer’s pushback she has a hard time tick throwing after anything other than either J.lk or one standing jab. After this, you can jab her walking forward to throw, or easily reaction tech. Do not cr. Tech against her, she’s too positive after jab and you will get trapped into cr/stand HP. 9/10 of her throws will come at those two points though and boxer can easily downback against her and not have to push anything as she has no over heads as long as you can block ambiguous jump shorts. Most of the time after a two hit drill, j.lk will cross, and after a single hit drill, j.lk will stay in front. If you get blown up by ex divekick in the neutral game, jump forward HP will completely shut it down; same goes for non ex for that matter. Boxer has the best tools to win this match imo, he’s too hard to vortex and her common unblockable set ups down work on him.
I would also say that Rog loses to Gief in the same way that he loses to Hawk, if not worse. The extended range of jab spd is a nightmare. And gief’s normals are very solid. I have much more success zoning out a good Hawk than I do a good gief.
I’d say Dhalsim is 5.5-4.5 in sim’s favor for the same reason that guile beats rog. Vega loses slightly to Rog 5.5-4.5. And I don’t think seth vs boxer is quite 7-3, closer to 6-4 although def awful.
Other than that I agree with the rest of your analysis,