1. The Pats have shown time and time again they respond very well after someone trash talks them. See the past 3 years v. the Jets.
2. BA didn't say anything so he would play harder. He's yapping because he's not confident. IMO. Read "Art of War" and other such works or just take a look at any bar fight. The guy who is running his yap is the guy least confident. It's the quiet, confident guy that's going to knock your ass on the ground before you have a chance to utter two words.
If I was BA I would've kept my mouth shut after his performance against Denver. Worry about staying in your lane during kick coverage instead of what the Patriots did in the past.