pretty much acted appropriately. One made the equivalent of a mean tweet, but nothing terrible. Then he deleted it and apologized. Another was seen picking up trash off the field that had been thrown by Utah fans. The college age kids were pretty mature about it.
At the next level, you go to the common Utah fan. Many handled it well, with some admitting all the reaction was unjustified. The majority (at least those that voiced an opinion), however, have thrown a hissy fit. These are people older than college age for the most part. But they have no authority with Utah athletics.
Then you have Kyle Whittingham who makes several inflammatory statements about two plays (the holding call and the Kuithe injury) while admitting he hadn't seen either play (wasn't focused on the area of the field in question). He doesn't have any idea what he's talking about. But he can scream himself horse at a ref, throw a fit in the press conference after the game and insinuate a non-existent dirty hit actually took place. He's the head coach. And he's behaving like a spoiled brat teenager.
Finally, you have the Athletic Director, Mark Harlan. He's in charge of the entire clown show and he absolutely loses it. Going at least five yards out onto the field during a live play. Screaming at refs and yelling personal insults at them. He goes on to cut the line and grab a mic (something almost never done by an AD) in the press conference and behave in the most unprofessional way conceivable (OK, I suppose he could have streaked the field or physically assaulted someone, but short of that what he did was as unprofessional as you can imagine) all while calling the officials unprofessional.
It looks like the kids are the mature ones. And the adults are the inmates running the asylum.