Well the committee can do whatever it wants, it sets out and thinks about what teams it wants in and then constructs a post-hoc rationalization to fit their narrative. That being said, until I turn on the selection show on Sunday and see otherwise, I'll continue to believe that so long as BYU loses we're in (Bama losing and a few other results going our way wouldn't hurt either).
What I think is the jump of Bama over us was to lock in Bama. If Bama wins, they're of course autolocked in and might even get a bye. If they lose and BYU wins, the committee will move up BYU and bumps down Bama a spot and just says "we don't punish conference title game losers that harshly." If Bama and BYU both lose they might slide Bama behind us and move BYU down below Miami, keeping the "buffer" between us and Miami and locking us both in. Obviously if both Bama and BYU win our season is over and those are the breaks.
The one interesting scenario is BYU losing and Bama winning. What you think will happen depends on if you have a bias towards paranoia or not. While most of the ND fanbase has started to believe the committee is conspiring against us (for some reason they really fucking hate us and are waiting to twist the knife in the most painful way possible at the very last minute), I believe the committee really likes us and is going to look for a way to keep us in the fold. They could have at anytime moved Miami ahead of us, they just showed on Tuesday they don't really need any real reason to do it, and who would have complained? ND fans? That's about it. But they've stuck to their guns. Now, if BYU and Alabama win their hands are tied and that's whatever. Maybe I'm proven wrong and I can live with that, but we'll find out in a few days.