I think it's double pressure because McDermott's D, while very good during the regular season, even against KC, has looked mostly helpless against them in the playoffs.
In the last 3 regular season victories, we have held them to 17, 20 and 20 points.
In the last 3 playoff losses that has ballooned to 27, 42, and 38. And the 27 points last year was kind of an aberration because KC was averaging over 10 yards a play well into the 2nd half and the only reason they didn't score in the 30s was because of Hardman's goal line fumble and the Bills maintaining possession for so much of the game.
IMO, there should not be THAT big of a difference between the two.