I'll take that as a compliment, you made me feel very young!
Are you honestly saying this is the first time you've heard comments like that coming from a defense or their coach?
In general, you don't talk about not caring if you get a 15 yrd penalty if it takes a QB (who are very protected anyway) out of the game. It's not a very bright move. It's one thing to say....we're going to hit him hard all day, yada yada, but talking about injuring him was just stupid.
Given his comments, he'll likely bring more attention to himself from the officials and anything even close to being a late (or excessive) hit is going to draw him a penalty.