I don't see any point in making it personal or assigning blame. Wilfork has done nothing wrong here. He signed a deal, he's willing to play that deal out, and he's not willing to make concessions on a deal that he had to play at an elite level and be underpaid for 6 years to get. Can you blame him for that?
Likewise, the Pats are pretty sure that his play this year won't be worth his $7.5M base salary, so they'd rather cut him than keep him at his current deal. They're almost certainly correct in their evaluation of what he'll bring to the table.
It's a crap situation, because I think everyone involved would have preferred that Wilfork remain healthy and playing at a level that would justify his salary this year, but that's not how it worked out. As it is, both Wilfork and the Pats are coming from defensible positions. Neither one of them is wrong. The Pats know he won't be worth his contract, and whatever they offered him in an extension is probably less than he believes he can get on the open market (and I'd bet that he's right). It is what it is.
And no, I don't for a second believe that this has anything to do with the Revis contract. The writing has been on the wall for months, and a ton of us here called something like this happening months ago.