They've been awful in every game they played. In fact, they were awful last year, they just had a good enough offense to make up for it. But you're right they're worse this year.
The Michigan game was a fluke for utah, nothing but luck that yewts played them their first game. Play them now, yewts lose. I'd bet money on it and I don't bet on sports.
The utah offense is suspect at best and the defense is just not great. Meanwhile Cal has a great offense and a mediocre defense. It's going to be a shootout and Cal will outshoot utah.