You mean Azzanation and Ludicrous Speed hates Microsoft and that is why they don't see a need to buy Playground Games?
Or like Santa Monica making God of war?
Bioware made Xbox exclusives and look what happened.
SSM besides supporting external games also were requested by Sony to do a game that wasn't GoW. Cory Barlong himself defended and pitched GoW on PS4 and got greenlit (similar story to ND who also decides what they are going to develop and they decided to make 4 UC+LL and 2 TLoU+DLC).
PD was created because Kaz wanted to make GT, he also helped LoD, made a bike game and a very obscure one. He is the one also deciding to keep doing GT.
All these 3 (and effectively others) are free to decide what they want to make.
About Nintendo you can go and complain to them, even if the head of the studio was the creator of the franchises and probably the one that is more passionate to keep doing those franchises.
duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"