The problem is that many of the things founders assume to be advantages really aren't, or they're not as a significant as believed. In business generally, a lot of people overvalue and place too much emphasis on "advantages" that don't directly influence the metrics that matter, like sales, cost of customer acquisition, churn, etc.
You're entitled to believe whatever you'd like, but if you want to make a convincing argument that being a part of YC is a meaningful advantage, you'll have to explain why, as I previously noted, the success of YC startups basically follows the same power law distribution you see across the Valley.
