Beating Arizona won’t move Utah up much. Utah’s ceiling is right around #15 this year and will need to win out, including the bowl game, to get there. Right now Utah is 0-3 against ranked teams and can’t win their conference, but could be the NY6 auto-bid from the PAC were both Washington and Oregon to make the playoff. So the committee has to keep them ranked.
Arizona still has a mathematical chance of making the CCG so that is why they are slightly higher. And they are 1-2 against ranked teams.