I don't think Jenkins sounds all that offended. A player in his position is always going to have a bit of a bruised ego, after playing his heart out for years and then realizing that his team no longer wants him. He's right that they don't want him, and that has to hurt. Under the circumstances, I think that his words are pretty reasonable.
Cullen's been great, but I understand why they are letting him go. Too many injuries, and there is at least one good player (Neal) behind him. Cullen's last shining moment was the NFC championship game, in which he was a beast. He was oddly invisible in the Super Bowl, but then, so was Raji for the most part.