Maybe I'm projecting on you points I'm seeing others make.
Seems like the consensus is that since the Bills didn't make any big FA splashes, and just retained their same guys form last year, we haven't improved and can not possibly get past the Chiefs.
Then I read your point about the Chiefs losing in the SB due to the state of their injured OL. IMO, not nearly enough was made about the state of our WR corps for the championship game. I'm not sure I've seen a situation like it, I mean every single one of our pass catchers was banged up. And we're a heavy passing team. It was an extreme and unusual situation.
I'm not going to assume that we're not potentially better that the chiefs- or anyone for that matter.