It doesn't go into how feasible making a living income is actually, merely highlights the top earners in specific platforms... Rather suspicious to me.
It'd be interesting to see the payouts on these platforms evaluated on the basis of something like the Gini coefficient (https://en.wikipedia.org/wiki/Gini_coefficient).
Actually, it's better for these platforms to have the average be low bc it means they have exposure to as many creators as possible. The cost of supporting each marginal creator is basically zero so they want to maximize their odds of onboarding a creator that will be successful even if that means onboarding hundreds of unsuccessful creators to get them.
Anyway, "passion" is usually/often code for "doing what you love instead of being paid", which may be fun but doesn't have a good retirement plan.