It's like they think that they're the only character with one awful variation. Raiden, Johnny, Sub, Scorpion and the list goes on.
And those ones you mentioned should also get help, of course.
I always said it. People should stop thinking about variations as part of the same character, in most cases they only share the name. Fisticuffs Cage for example, has ABSOLUTELY NOTHING in common with A-List. So saying, "hey, you have other variations that are good, play them", adds nothing, it's a nonsense way to comfort people and try to make them forget the reality, which is that a bad job has been done with some variations.
So even if Kenjutsu and Possessed were very good (which is not the case), that wouldn't be an excuse for Balanced to be that bad as he is now.
All variations should be viable, those extreme differences are annoying and prevent the game from being fully balanced.