The Rankings Methodology has not changed. Other issues with your arguments

It is exactly the same as the past decades. They publish the criteria, and it is exactly the same. The 12-team playoff has no impact on ranking = they specifically stated that especially as regards to seeding. They will seed teams to a rematch if that is where the rankings lie.

ND is not on the bubble with 11 wins. They are in. 11 wins = in. 10 wins = unlikely but maybe?

SMU is not undefeated. They might get in with 2 losses but I doubt it, and they aren't replacing a 1-loss ND.

Indiana is an undefeated BIG team still, and deserve to be ranked higher. They will drop significantly with their first loss, which I expect before the BIG champ game. If they get to BIG champ undefeated (which they'll have to with tiebreakers - they truly haven't beaten anyone), they deserve to be ranked higher.

The likelihood of a 2-loss OSU team missing playoffs (unlikely) is almost an order of magnitude higher than a 1-loss ND team missing.

The Big-12 might cannibalize itself to 1 team. None of them are perceived good or performed well.

Save your candles for other things, like a peaceful inauguration for whomever wins.