Welll, to begin and end with, Painter.
But, since you asked, players that want to drive and attack the rim can’t do that when you run the offense through the low post because your 5 is usually camped out in the lane attracting 2-3 defenders that clog the middle and take away the driving lanes.
Then, you rely on swinging the ball around the perimeter hunting for shots or another entry pass. And when you’re a poor outside shooting team, like Purdue.
So yeh, it’s fun seeing a 7 footer on the court but the reality is, that’s an antiquated offense that doesn’t work any longer and players that want to create and attack the rim won’t want to play in Painters offense.