Gophers were really bad 2 years ago and average-ish this year. I suspect he had fewer good opportunities this year bc he had better players around him. He had slightly fewer shots per game this year so he didn't grow into a role in year 2.
The Gophers btw are in exactly the same situation as us with the portal. They lost more than half their team, including their best players. They bring in good freshmen, develop them, and have them bought out by higher level programs. They then take the best players they can get from lower level teams. There's some point where you become more of a winner than loser in the portal but it's above the Gophers' level.