Tyler isn't stupid it seems, he knows his shit. With the one album deal he has with XL recordings for GOBLIN he gets full creative control on everything. Beats, lyrics, features, songs picked, etc all the way down to the cover. Plus on top of that he has it in the contract that he eventually gets the masters back.
At this point people like Kanye, Questlove, Gza, etc showing love is helping, no doubt. But they don't need to sign with anyone in a whole "so and so signs with Eminem" or whatever big name you want to interject type of way. If anything I say them not doing that, which all signs point to that is what Tyler will not do, will make it a lot better for them in the long run.