You can try to sugarcoat it all you want, but Utah has shown who they are. The very second that BYU needs them to continue playing, they back-out with lame excuses about scheduling difficulty and what-not.
The only reason Utah offered this scheduling compromise is with that hope that BYU will refuse so that Utah can save some face. If BYU refused the most recent agreement, then Utah could claim that it was BYU that walked away from the rivalry.