They weren't Sony's, but they were Playstation exclusives. That was the discussion, Sony exclusives. Sorry if my wording was unclear.
Horizon Zero, Bloodborne, Last Guardian and TLoU have one game. That's not a franchise. Days Gone and Detroit don't even exist yet. So really it's Uncharted, Infamous, LBP, Killzone, MLB, Gravity Rush and GT.
Maybe that's great to you. I think compared to the days of the PS2 and even the PS3, that's a limited selection at best.
Of course it will. But it's a much hyped system from Nintendo. You wanna sell stuff against that?