Wait, so if the Bills and Bengals end up playing, they will be at Buffalo?? That seems odd considering all the other provisions that were made, especially considering the winner of that game would be hosting the other team.
It's not odd at all if you paid attention to what was going on last week. The league said plain as day that they're drawing a sharp distinction between (a) teams that played the same number of games and (b) teams that played a different number of games.
The Bill and Bengals played the same number of games. The Bills have a better record. Therefore the Bills get to host the Bengals, as usual.
The Bills and Chiefs did not play the same number of games. The league basically gave the Chiefs 3/4 of the #1 seed -- they got the first round bye and won't have to play in Buffalo. But they don't get to host the AFCCG. If it were up to me, I would have just gone by winning percentage and given the Chiefs the whole thing, but the league didn't ask my opinion on the matter and they arrived at a reasonable spot.
If you really think this is odd, it's because you weren't paying attention. If you simply disagree
with the league's reasoning, you should just say so and quit pretending that their reasoning is some kind of inscrutable mystery. It isn't.