You've made it clear you're a Utah fan. And your friend is a Utah fan, I'm guessing. This makes no sense.
Yeah - every game is BYU's whole season. Not just the Utah game. Every game.
Let's be honest - no one is expecting BYU to go undefeated this season. So they were relegated to the Hawaii Bowl (or whatever bowl they're going to) back when that contract was signed.
Utah fans I've talked to are starting to buy into the hype and believe they have a shot at the playoffs. Which means this game is important to them too. KW downplaying it is cute and all - he's a master of psychological warfare when it comes to football. But this game is important to him, to Utah fans, to Utah players, etc.