So touchscreen IS professional, according to Apple, on an iOS device (iPad Pro), but NOT professional on an OS/X (MacOS) machine?
Got it.
That is correct. And I'm not defending the position but Apple has been pretty clear and vocal about their opposition to touchscreen laptops because they view the natural input and style of use to be different. Touch is obviously king on tablets for a reason, but laptops?
I'm in the camp that doesn't care for touchscreen laptops at all. I think it's pretty gimmicky but that's because of my workflow.