If you could watch NBA games from court side seat in VR, they would be flying off the shelves. I'm fairly sure nothing technical is preventing this from happening. Most likely it is blocked by existing media contracts. I.e "non-technical" reasons.
> it would be entirely non-immersive because moving your upper body
Not sure what you mean by this?
Even so, it’s not about perfect immersion. It’s about having the best view of the game sitting from home.
>Not sure what you mean by this?
Imagine full 3d scan of the players in real time. You could move around the court and watch them play.