That month of is not a benefit
Maybe not. Lots of factors to consider though.
Boise and ASU had big talent disadvantages against their opponents. Time off really wasn't a gamebreaker for them.
Ohio State-Oregon is a bit more interesting, but if UGA loses tomorrow then we could really give that theory some serious consideration.
I always wondered if it would be worth it. 3 weeks off isn't like getting a bye week in the NFL playoffs. Really changes momentum and being ready to play.
1st round teams get a week off as is, and if they get a G5 or easy P5 to warm up on, it's sort of like playing a tune up week 0 game before playing a team who is getting their year started in week 1. Obviously not exactly the same since you've had a season under your belt and know what's what, but in terms of being "game ready" you've had some recent real time reps against a decent team but not so hard that it was a battle of a game and wore your team out.