Exactly.
He's a commodity to MLSE. A very, very valuable one.
As fans we see only the failure and suggest he be moved so the team can start over, MLSE sees a huge profit margin with him and that saying about "you don't trade away talent" would be more accurately described as "you don't trade away highly profitable assets."
So no GM or President of Hockey Ops for this organization would even suggest exploring the idea of trading him because they know they'd probably be fired. MLSE will clean house, literally everywhere, before trading away their human ATM machine.
And sadly, he and the rest of the core are now damaged goods because of it. MLSE knows it, but they'll keep sending these completely mentally broken "assets" out there until they have no value anymore (when they retire or LTIR). It's cruel to the point I *almost* feel bad for the Core guys (they signed the contracts & extensions to stay here, right?)
In any case, I do think this will be his last contract as I don't see any realistic scenario where he asks for a trade or would be granted it even if he did. He's $$$$$$$$$$.