Utah has big wins of 2021 Oregon and 2022 USC. . . That's it. . .not too many games.
BYUs loss in 2010 MWC is the only Ref blew the call moment I can think of in 2 decades of the rivalry.
BYU got the correct call to keep them in the game in 2013.
My guess, there is no conspiracy, there is no Pac12 protection or Utes, just imperfect refs making imperfect calls.