Ehhh I mean maybe sometimes that could be the case, but here I really feel this is a case of doing right by the player.
I'm convinced that with the whirlwind of media attention, tragic life events, and generally how difficult it is to come back from injuries, Brock just has let it be known he would be amicable to a trade elsewhere, and the team is open to the idea, to accommodate the human, even if they would rather keep him. I think by bringing in the agent here it could also read "look we would rather keep you around to be honest, so it's not something we are willing to put the effort into, but if you can kickstart a process, then we'll explore it on your behalf".