Glad you found it interesting. I'm one of the co-founders of CBI, but the heavy lifting on this analysis one was done by our data team.

These are good questions but unfortunately, they're hard to answer in a data-driven way. Essentially, there is no way to discern from data your points 1 and 2 as it requires judging founder savvy or VC deal flow quality. While both are plausible, it's hard for me to say conclusively either way.