If the return is low, which is probably the case, I'd be pretty upset as Blackhawk fans/organziation. He really did them dirty by waiting to make his decision (could've gotten the Tarasenko return), then only giving them one team to trade to.
You can say, he won them 3 cups all you want, but he got a big contract for doing so. If I was the organization and the offer is peanuts, I'd just keep him. If they're getting low pick(s), the chances of that amounting to anything is so low that it's not even worth it. Owner should just be happy to make millions more off him by finishing the year/tenure with the Hawks, as many fans are gonna wanna see his last games as a Blackhawk.