I think we could at least give the other three a good game, but who knows? But I'd expect to beat probably as many as 10 other teams in the current top 25. Illinois, Mizzou, ISU, Tulane, UNLV all come to mind.
You've already stated you think we belong in the 25-40 group, so either you think we'd lose to all of the above (and others), or there is this hidden echelon of more deserving teams that you'd put in the top 25 before us.
Either way, that is not realistic. It's negative relative to computers and the opinions of almost every reputable college football analyst I've heard opine on BYU this season. So again, don't be surprised when you're characterized as such.