Well, having been in an accelerator there were folks (startups) in my class who shouldn't have been there. i.e. their startups failed but it was blatantly clear why -- mainly immaturity and not listening to advice.
I think your idea would only work if there were rigorous selection process, but also some mechanism to "fire" founders who aren't contributing or insist to make terrible decisions.
Very curious about RL for LLMs for example (using data from real use).