You do realize that both the Redskins and Colts fans made those same statements, right?
They had to give up on the blitz, which was ineffective during the first half. Brady will surgically take apart that defense if they think they'll be able to simply drop 8 (hell, even seven) in coverage. Anderson was not able to consistently make the check-down throws that were there to be had, and when he did the Browns dropped a lot of balls.
It's not going to be a blow out, but there was nothing in that game that should frighten the Patriots. Especially when you consider the fact that the Steelers STs played like crap and their running game was pretty stagnant during the second half.