TCU, Utah and Boise all were there as well. With only Boise there just aren't enough quality opponents to make any noise in the MWC. Boise had a big game against FSU. They don't have any more games of national importance. Right now BYU and USU are their 2 most important games.
BYU has already played 3 teams better than FSU, and the one that wasn't was @ Tenn. The 2020 schedule is simply the best Non-P5/ND schedule in the history of football. There is no way around that. BYU has done a great job of scheduling.