Going against neutral or being pressured by Bison is in his favor. There is a lot of forgiveness in his current kit. So at the end of his pressure he can be at a more favorable range. It's not favorable to go back further, because thats in his favor. When it comes to meter management, you have to be ahead of him. If you watch Nemo play, he's just ignorant AF with Bison. It's all pressure all the time, where Kakeru is more reserved. Both ways work because of his strengths at seemingly every range.
So lets say Bison is cornered, he has strong buttons and can DR out, like everyone else, but his buttons are better. He's 1 mix up from doing a complete full screen corner carry and having all of his meter back while you have whatever from getting him to the corner. It's a lot like Ken, except Bison's reward for punishes is way higher. If you don't win neutral and he is 1 mix up at any point to total corner carry, where he can pressure you with said superior buttons, it just feels like the work you do means nothing. That's also after he's pressured you in neutral. Walking down a Bison is super difficult unless youre Gief or Cammy right now.
Edit: I think Lily and Honda do well against him too now. They're not really relevant to the meta though. I thought Chun was a strong option but I've done a 180 on that atm.