I can see why the Steelers are on his list; the narrative is that they have an explosive offense that our defense won't be able to contain. Fair enough.
But traditionally, the Patriots lose to teams with an excellent defense and fierce front 4 pass rush. That's the case with the Broncos and Ravens in recent years, the Giants in the two Super Bowls, the Jets in 2010...The one exception might be the Colts in '06, where the offense was the strength of their team.
We usually beat teams with good offenses. All those Steelers teams last decade, all the Pink Head teams before he finally broke through in '06, the Colts a couple times this decade. Most of those teams had strong aerial attacks. We just had stronger ones. We almost always win the shoot-outs; we lose when Brady has no time and we only score around 21 points.
So if that holds true this year, then we would be expected to beat the Steelers and the Raiders, but might have problems with the Chiefs or the Ravens, or the Broncos, assuming they make it.
I'm not saying the Steelers can't beat us; you'd have to be way too overconfident to make that claim. I just think that's not the type of team we usually lose to in the playoffs.
ETA: I guess the Broncos in 2013 had an incredible offense, obviously, so that is another exception...but they were still very good on D. And they played dirty, and still do; another reason we'd want to avoid them this year.