Those comebacks were against:
San Francisco 49ers, 11-4, Clinched a playoff berth (on the road)
New England Patriots, 11-4, Clinched AFC East title
Miami Dolphins, 8-7, Win and they're in as #6 seed (on the road)
New Orleans Saints, 10-5, NFC South division leader until they lost, clinch playoff berth with win
That's four teams with an average record of 10-5. High chance that those teams ALL wind up winning next week, too, which would bring it to 11-5.
And every other win was basically an ass-kicking. Then losses to the Seahawks, Cards and Saints on the road (two 10 win teams), and... the Bills (but hey, we got Riverboat out of it!).
I'm trying to temper my expectations, especially if we get the 1/2 seed, but this is pretty impressive.