People really don't get that there's no nerfs or buffs yet. Capcom's balancing the entire game around variables you don't even know about, so saying Bison or Ryu got nerfed is weird. And not all the changes are necessarily balance reasons. There could be an internal philosophy for how they want the cast to perform according to their vision for the game, and they're just bringing everyone in line. Or they changed things because they caused weird gameplay issues you don't know about. The game is still in a massive state of flux, characters are losing and adding motions, dash animations are changing, character speeds are changing. Hell, I'm assuming a large part of what you guys are playing in the beta has been changed weeks ago.
So I'm not gonna worry about balance yet.