I'm a hobbyjogger who started running again a few years ago, based mostly around getting interested again after watching Kipchoge. I have enjoyed running in VF's because it's fun to go faster than I used to, but also because I hurt less after races and recover more quickly. If they get banned, I think it'll be less fun for me, so I'm likely not going to prioritize, say, training for marathons and paying a lot of money to join races.
Limit stack height to 36mm? Sure. Ban anything that looks like a VF? Nah, I'm done.