The thing is that being annoyed doesn’t accomplish anything, and both sides are just repeating the same things. If it bothers you, say exactly what you would do to replace it, keeping in mind the existing system of the game and the relation to other characters.
Removing Gief’s SPD is a sloppy analogy, because you’re missing a lot of important factors. Gief’s SPD is the center of his character, while Karin’s is her rekka. It might sound weird, but keeping Karin’s command grab in SF5 would change how her character plays a lot more than removing it would, honestly. In A3 you can’t really tech throws, only soften them, so the rules are different and command throws aren’t that big of a deal unless they have some other advantage like huge range (or v-ism stuff.) Karin having a command throw in SF5, on the other hand, would be a big deal, and have to be compensated for elsewhere.
Ken might seem similar enough to SF4 Ken, but go back to Alpha like Karin is or even 2 and there’s tons of differences. Where’s my roll, or safe shoryu?
It’s more like this. You have two choices, Gief A and Gief B.
Gief A has his SPD moved to V-trigger, and it’s like SF2 SPD, way stronger than any other modern command grab. Outside of V-trigger, he has other command grabs. Maybe one of them is a leaping grab that goes around projectiles, so it has range but also some startup that can be counterhit. This accomplishes the same goal as running bear grab and green hand, so you don’t need them anymore. Maybe he gets green hand as a cameo during the EX version.
Gief B always has access to SPD, but it has significantly less range, his running bear grab is completely unusable (but it’s there!), his green hand is not useful unless you spend meter on it, and he’s become much more reliant on strikes and jump mixup rather than grabs because of how unsafe his nerfed grabs are.
Either way you have a character with an aspect that the developers have clearly identified as undesirable in the modern system (SPD) and these are two different ways of approaching it. Gief B is SF4 Gief, doomed never to be good. Gief A still plays like Gief, but in a different way from his old version, and he has more room to be good in his own way.
I would rather not have Gief B. Just having the moves for nostalgia purposes doesn’t really do anything for me if the greater picture is going to suffer for their sake, despite how much I might like them in a vacuum.