There’s iPhone and iPad which are single pieces of glass, they’re direct-manipulation, multi-touch and tend towards full-screen applications. And that’s that experience. And we want to make those the best in that direction anyone can imagine.
...Says the guy from the company who hasn't brought one single notable improvement in iOS 10 for the iPad Pros. None. Zero. Still using the same iPhone OS with minimal adjustments on a 12.9" iPad.
They only care about the iPhone, that's pretty clear.