I disagree. Saying how you would make one play after another that our current D didn't make, when you've been cut by said team sounds like sour grapes to me, and is in its very essence outrageous.
I don't think he was talking about "our current D". It seemed to me that he was talking about players across the league and he was making the point that he would be an upgrade over many other players that would be making teams.
Essentially, he doesn't want to play in the north which is where his offers were. He wanted to stay closer to home and was probably referencing teams like the Jags, Bucs, Panthers, and so on.
Crowder is a good player and (if healthy) would be in heavy rotation, if not the starter, on many teams. People don't like his sense of humor, but that is just a preference issue. Lots of haters out there, kinda sad.