Right, and that's a scenario that causes problems for the NFL. If all you have to worry about is deck shuffling for seeding, like who's #2 vs #3, I think they'll be fine doing something like taking H2H or coin flipping or whatever.
If its the difference between a #3 vs #6 seeds, they'll need to come up with something. Obviously changes home/away status for games, which is material.
The super optimal scenario for the NFL is for the Chiefs, Bengals and Patriots to win. That happens, and Bills/Bengals are tied at 12-4, and they can just go through the normal tiebreaker process to determine #2 vs #3 seed. Chiefs are undisputed #1 seed, Chargers/Ravens/Patriots get the wildcards in that order.
Also, if the Bengals/Bills tied at 12-4, based on what I see, Bengals would get the #2 seed on SOV tiebreaker. They would have same Conf and Common game records.
So in that scenario, Ravens would be playing in Buffalo on wildcard weekend.