Rockwood will doubtless address the problem and benched the culprit to start the second half.
One thing last night showed is that players lacking speed get caught in fouls a lot easier. A fast player gets into position to draw the foul, win the touch, intercept a pass, block a shot. Slower players are vulnerable in their technique is sub optimal.
BYU has to fix the mental mistakes and keep developing chemistry to win the needed games to make the NCAA tournament. I think your projection fits.