The Bills can finish 10-7 still. They will lose to the Chiefs, but then defeat the Cowboys, Chargers, and Patriots, getting to 9-7. The showdown will be the last game, at Miami. Miami will likely be 10-6 going into that game (Miami will likely have beaten Washington, Tennessee, and the Jets, but will then lose to Dallas and Baltimore). So it will be a game for the ages! But let’s hope for an upset against the Chiefs next week instead!
10-7 is important because Pittsburgh (losing against Indianapolis, Seattle, and Baltimore), Cleveland (losing to the Rams, Houston, and Cincinnati), Jacksonville (losing to Cleveland, Baltimore, Tampa Bay, and Tennessee), and Houston (losing to Tennessee) will all likely end up 10-7.
By the way, Indianapolis (winning only against Pittsburgh and the Rams) and Denver (winning only against New England and the Chargers) will likely finish 8-9 and not factor into the wild card.
Nothing is automatic. The games have to be played. Nevertheless, one can do predictions based on math and history.