Four things come to mind
#1 Meaty setups. I have been reading Dudley lately, did you know after a ex.mcb>mk.duck+upper dudley can use two ducks for a perfectly meaty cr.lk? That hits low and combos into his bnb, he has three or four meaty setups after his bnb, and I believe we can use more than oga or crane cr.hk for meaties.
#2 Crane cr.mk>FADC, this move has a slow startup, goes super low, and has exactly 21 frames of recovery. Theoretically, if you hit with this move on the first active frame, and canceled it with focus attack, you would have 21+2 frames to startup for FA level 1, this move is -3/-1 on block/hit, so you would have all of your frames of startup (21) and 2 frames of active executed before your opponent can even respond, if they block cr.mk, well then your FA comes out with both active frames on the first two frames of their being able to start an attack. Basically, if they block and then attack, you get a counterhit focus attack, which means a crumple. If they get hit, then block, you can dash in or out at +1 frames. Consider this in footsies (hitting low, ducking under jabs even) meaties (too low for that reversal eh?) Or jump ins (timed properly it ducks under far forward reaching jumping attacks like cammys j.hk)
#3 Beating neutral jumps. Did you know that if you are knocked down, an opponent walks into your body, and neutral jump attacks while you wakeup, cr.hp and st.mk will move you forward enough to be behind them as they land? Well, it gets more interesting. If in this situation, you hold the button of the attack you used, you will remain on the other side, and if you let go you wont?
#4 In the corner, I think crane cr.mp>crossup Oga may be a good can opener on certain characters depending on their height and the strength of the oga used. (Purely speculating on this one, but cr.mp has a lot of recovery frames to use canceled into something)
P.S. I forgot to mention for no.2, imagine you read them using a jab, hold the focus, absorb it and then counter attack instead of the free dash in, your read also leads to a crumple. And when are random FADCs that are charged to level three amidst blockstrings? Gens FA does reach pretty far, and you start this one right on top of them.