See of Utah's stats limited to the PAC-12 Era...

Games without allowing a rushing touchdown: 39... #1 in PAC-12.
Games holding opponents to 150 rushing yards or less: 72... #1 in PAC-12.
Opponent First Downs Rushing: 701... #1 in PAC-12.
Total Rushing Yards Allowed: 12,704... #1 in PAC-12.
Top 5 AP Football Poll Appearances: 3... #5 in PAC-12.
Top 25 Football Poll Appearances: 38... #6 in PAC-12.
Touchdowns scored off turnovers (interceptions/fumbles): 21... #1 in PAC-12.
First Downs Rushing: 973...#4 in PAC-12.
Forced Opponent Turnovers: 204... #3 in PAC-12.
Combined sacks and tackles for loss: 980... #3 in PAC-12.
Opponent Passing Touchdowns: 161... #3 in PAC-12 (tie with UCLA).
First round NFL draft picks: 2... #6 in PAC-12.
Best single season win percentage: .769... #6 in PAC-12.
Overall win percentage: .601 #5 in PAC-12

And two not so great stats (because otherwise you'll say I'm cherry picking)...
Total touchdowns: 352... #10 in PAC-12.
First downs passing: 902 #12 in PAC-12.

Utah doesn't dominate the league. But they're better than average as the original post argued.