Working relationships aren't binary. If you are still part of the organization, you still get all the benefits of being in the organization. That means getting all the development support, the tough love, and perks of being a Kings prospect.
If anything, him getting called up as a black ace helps from the Kings' perspective. Here's a taste of how it is to be on the Kings.
"You sure you don't want to follow the program? Because all your peers are doing it, and this is what they'll get when they graduate."
If you've ever managed a prima donna rock star employee (and we have lots of these guys in Silicon Valley that aren't as rock-star as they think they are), you know the drill. You can't bend the team needs around one guy. If they choose to be out of alignment, then you have to move on. But even better if you can convince them to get back in alignment.