Fact: Utah scored more points against and obtained largest margin of victory by any opponent of Air Force so far this year, including TCU.
Facts (like the fact that it took Utah longer than regulation to do it) can be twisted a lot of ways. Air Force will probably play BYU tough, but BYU will probably win. Either way I'm not sure that you can look at the Air Force games as a barometer.
On the other hand, Utah's offense looked awful most of yesterday, and I'm not sure that had much to do with AFA defense.