Utah didn't beat a single team that finished the year ranked in the top 25 and had two wins against teams that finished with winning records (UCLA & USC, both 8-5). And, they lost by 14+ points to three of the four teams they played that did finish the year ranked.
I think they'll finish in the upper third, but seems odd to me to predict them as the champs given that they'll be in a new conference, playing in new stadiums, dealing with different travel scenarios, etc. coupled with the fact that they weren't particularly great last year.