I think if GT finishes with a good record, that even improves their case to make it at 10-2. (as I very recently forgot) there's only 4 power conferences now. 12 spots is a lot of teams.
Put it this way, after the conference championship games last year there were 6, 10-2 teams from the 4 major conferences (not including SMU who just joined). None of them were conference champs. If I'm understanding the formula correctly, at least 3, if not 4, of them would have made the 12 team playoff. That's pretty good odds still.