We'll probably never know the true motivations behind transfer decisions, but I can't help but think it's probably way more related to escaping the current atmosphere/culture for those athletes. Yes, there will be athletes who are looking to move up the competitive ladder by entering the portal but it seems that the majority are making lateral moves...
It's a fairly well known fact in the HR world that the number one reason people leave their job is because the boss (or work) sucks.
Yes, plenty of other reasons, and lately "higher pay" is climbing the ranks. And "shorter commute" always comes in the top 5.
I'm guessing many are leaving because something about the coach or program sucks.