I think it is. There is a persistent myth that rich people drop out of school at larger rates than average. That "fact" is often used to suggest that education might be the opportunity cost that prevents one from getting rich.

It looks to me like the distribution of degrees among the billionaires skews higher than the general population, according to this: https://en.m.wikipedia.org/wiki/Educational_attainment_in_th...

Your point is super important too, because it's extremely unlikely that level of education has anything to do with being in the top 0.01% of the income distribution.

The article's "AI data" that says a bachelor's degree is 6% important is sort of meaningless. He's measured the relative correlation of variables, among only billionaires. It's still true that only 0.01% of bachelor degree educated people get there, just like only 0.01% of dropouts get there. We can't talk about how important education is to getting there until this analysis is done on the general population.