I agree with your comment as an additional way to look at the problem but want to also mention something I heard on a podcast a few months ago.

Paraphrasing "If you get good at seeing red flags it doesn't make you good at seeing green ones. When you optimize against failure you don't optimize for success. So on and so forth."

A failed founder can tell you what broke but won't know what else could've gone wrong or rather what else they needed to go right.