It is clearly a for you with a healthy dose of denial. No anti mormon stuff in 40 years at games? I went to games while attending there where I would hear anti mormon slurs in the first 40 seconds.
I have a lit of ute friends that are season ticket holders and none would make the outrageous claim of never hearing anti mormon responses, especially during the BYU games. Have you skipped all of those games. Also I would say that many may not say the word "mormon" in their slurs but replace it with "BYU" so as to not sound like a complete bigot. Many in this community use BYU as their whipping boy for the Mormon faith