Some Bengals veterans (e.g., Boyd and Mixon) have been making some blatant comments about the Bills defense to the media that aren't necessarily "insulting", but will clearly be taken as bulletin board material in the same way Brady's "fairly tough defense" was.
I'm not necessarily mad about it. Just make sure you cash every check you write. I don't know to what extent (if any) it's deliberate, but I could see the Bills being an ideal team to challenge in this way. They're the ones stuck under the hump with something to prove, and it could be easier to get in their heads that way -- not all that different from the Palmer/Dalton Bengals sans the utter postseason failure.