I hate to say it, but the big losers in this will be the end-of-bench guys. If you aren't in the two-deep, and weren't recruited by that coach, you will be dumped into the portal and replaced.
One of the reasons they have a 25-limit is to protect players from this action. If a coach can cut you and replace you without restriction, you will see a lot of kids get the boot whose only sin was not being good enough for a program that chose to offer you.
The NCAA is rapidly turning into a mechanism for the top programs to keep their grip on being a top program rather than any sort of organization to promote the wellbeing of its players.