It is my very personal and niche opinion but what I think we are seeing here is a social problem.
We ranked pools and then told holders “go select one”. Ofcourse they would select the first ones in the list. And that is the problem. All Cardano applications focus on sorting one way or another on “performance”. Now a lot has been said about this but all things being equal all methods send out the wrong signals because the only metrics that matter will be available next year at the earliest. And in the end, it doesn’t matter to the holder if they make 5.54% or 5.56% ROI