I agree, the Bills are better now than the 13 seconds version. And I do think the Chiefs have taken a step back. But, unfortunately, the Ravens are a lot better than they were back then. I think, as a unit, they are better than KC were even then - especially as the Bills were/are built to neuter KC. The same cannot be said for Baltimore.
That's not to say the Bills can't beat the Ravens, but it's a game where nothing would be a surprise. The Bills could blow the Ravens out. The Ravens could blow the Bills out. Or it could come down to the final second.