> As an avid Splatoon player, something I've come to learn is that there are players in the highest rank who play mobile and even can't/don't/won't play on a TV.

Do you know why? I'm curious to know.

I guess that, when you are playing on a TV, you don't have a 'full range of motion' because you need to continue facing the TV, but I don't know of anyone who does a 180 turn in Splatoon by spinning in real life--I was under the impression everybody uses the right control stick to rotate the camera for large motions, and then uses the motion controls for fine-tuned movements.