in the country should get a chance to upset the top teams and run the tables and win the Natty.

2 problems with your scenario:

1. The top ranked G5 or non-P5 team will always be valued lower than anyone else, and they'll have to play the toughest path to a natty. If BYU has a legitimate championship contender team, you're handicapping BYU by forcing them to slot in at the worst bracket position. You're using a basketball analogy where there's always a Cinderella team or two. The only reason there's a cinderella team is because the playoff is 64 teams, and a good, but not great, team can sneak in as reasonable seed. That won't happen in football.

2. If BYU legitimately has a team that is capable of winning the national championship, they'll make an expanded playoff anyway. If they're going to be giving a G5 team a playoff spot, then they'd have to expand the playoff to 8 or 16 teams. In any season BYU isn't ranked in the top 8 or 10, then we don't deserve a shot at the national championship. The teams that won more regular season games and did better than us deserve that shot. If we can't finish top 10, then we aren't winning a national champtionship anyway.

This mythical access is just that. A myth. BYU's finished well enough to be considered for this fantasy playoff once in 35 years.