Playing in week one also negates their depth advantage, which is the only clear personnel advantage they have over BYU.
Also, this season, the pressure is all on Utah.
I wonder if the players read their own press clippings. It will be very difficult for them to live up to the hype, when BYU — who is supposed to be so much worse — is right there, and maybe better than half the PAC 12 teams they'll face this year.