What The Beautiful One said is true. The only way for Bison to do any substantial damage is to do something unsafe, so if the opponent plays safe as well and punishes every Bison’s unsafe attempt to get in, numbers are against the poor dictator.
At low levels though, this is not a problem, since playing safe and being good at anti-airing is not very common.
But that brings a new problem: if they indeed buffed Bison to make him viable at high level, chances are that he would be broken at low levels. This naturally doesn’t bother most of us, but since Capcom (like every other developer) has to take low levels into account as well when balancing a game, maybe it could not be that easy to balance this character. From a developer standpoint, an online community being dominated by Bison scrubs is just as bad as a tournament being dominated by Yun players.
That being said, they might consider re-designing Bison from scratch. For example: what is the most over-used and spammable move/strategy at low-level environment? From my experience, it would probably be cr.lk, since in most occasions it’s a free “get off me” move against people who aren’t good at frame-trapping. Then there’s crossup PC, Head Stomp for those who still get hit by it, spam of scissor kicks and st.HK, ambiguous crossup.
Then they should consider what Bison needs to be viable at high level: an anti-air, higher damage, an overhead maybe, and an Ultra that doesn’t suck ass.
Removing some of the things that make him so powerful against scrubby players and adding some of the things he needs to be competitive at high levels would be the way to go imo. The only problem is that doing so, he would be a totally different character, which means they have to spend more time and money testing him.
And I don’t see Capcom doing this any time soon…