Why don't we see more artists playing with actual VR musical instruments?

Maybe I've missed it or there's some kind of limitations that makes it not work well... but why don't we see more of this?

I'm not a person who plays instruments so maybe I'm just not fully grasping the limitations here.

Like DJing seems to work well: https://vrc.tl/#

But everytime I see an artist doing a consert or lone performance they're always playing their RL instruments.

What is missing for us to have really good VR instruments?

I feel like there's a potential here to create uniquely interesting VR instruments and sounds that would be hard or impossible in the real.

Can someone with a bit of knowledge with instruments explain this?