While the simulation thing is true to an extent, I think it’s true of VR as a medium, not just VR Porn.
When you play a VR video game, you’re transported into the game as opposed to just watching it on a tv screen as you would on your Xbox. VR Porn is the same, instead of just watching the porno on your tv, you’re actually in the porno (or as close as you can be).
The issue VR Porn has for me is that a vocal element of the VR porn community don’t actually want to be in a porno. They want to be in a realistic (in their mind) sexual encounter with a wholesome, pretty, girl next door and make sweet intimate love to them. There is a place for this obviously but it isn’t what the vast majority of porn is about. So you get your regular porn fans, who watch pornstars having crazy porn sex and think “wow, it would be amazing to see this in VR” only to find that there’s comparatively very little of it in VR and it’s all very vanilla boring sex with all natural young girls that goes on forever. Plus the people who like that GFE stuff are incredibly hostile to anything that deviates from it. The regular porn fans who want to see their favourite stars having the type of sex they’re used to seeing ultimately don’t bother sticking around.
In terms of having non-POV stuff in VR, it seems like a bit of a waste unless they involve you in the scene so you’re still “there”. Like a cuck scenario or some other kind of voyeur scenario. I think most people get into VR (porn or otherwise) to experience things as if you’re there not to just watch a 3d movie.