He's always got a strawman argument queued up for these occasions.
The truth is, as I see it, that Hammer was always very, very good at his clears for being on his backhand. And very good at the short outlet passes from the boards to the curling center or winger looking to break out. Very quick hands and the puck would be gone immediately, and accurately. This past season, he wasn't nearly as good at that. His clears weren't as strong on the backhand, so they were intercepted often, or held in at the blueline. His accuracy on his short passes was off resulting in missed passes/giveaways.
He was solid. Don't get me wrong. But the decline is obvious here. Unless he was just playing hurt(but I feel like he's always playing hurt) so it seems more to me like he's starting to decline. And this trade was a perfect example of maximizing a guy's value while he's still playing well, as opposed to him falling off a cliff, and being unmovable.