Absolutely. It's a garbage move. Basically the transfer portal is free agency w/
player options every year. That in and of itself is really dumb and annoying from a semantics point of view for a program and the NCAA has let it get out of hand.
At least pro sports have contracts so if someone is unhappy then they still have to play or you can trade them for value m. You can't do that with a scholarship player and a dude leaving mid season is just low and selfish, you signed a commitment letter, at least finish the season barring an actual safety/harassment issue which wasn't the case with Holker.