I have to wonder if it's about saving face at this point -- they spent assets to trade up in a move that was queried even on the day (and before), and have invested years of dev into him at this point. Then there's size, snarl, stick length, etc.
It does seem like he might already be the player he's going to be, and not a great or even very good one. But we've heard repeatedly over the years from Murat and a few others that the org is invested in and committed to him -- so yeah, I don't see him going onto waivers or being moved until they've had another very long look.
Well as long as they aren't blocking more deserving players then by all means take another look but he's soon to be 25 and likely not going to improve much more.
Also about the whole save face thing, I get it but I would hope these guys would be professional enough to not let that get in the way of making a call on a player.