LordCrash seems I did read it somewhat quickly, sorry about that.
I guess it's a matter of preference though. Some like to roleplayen (like you), some like to sell the illusion off being the guy in the scene as much as possible (the idea of fucking that girl yourself), some like both (like me). Seems like preference to me but I guess that's your point. And yeah fucking hot girls irl is always more fun but not always practical or possible (also, even the best girl won't suck you off for 30min every night and I have yet to meet that guy who has had a mffff+). To be fair though, passthrough being rather gimmicky at the moment, all my favourite scenes are still non passthrough.
Also, I doubt we will be shooting greenscreens for very long anyways. More likely we will have alpha maps to be able to toggle between passthrough and regular VR and body in body out somewhere in the nearish future.
Still, I think experimenting with things like passthrough will get us closer to the next level of VR/MR porn in the future and personally I'm always excited to try out new experiences. I see it as part of the puzzle so to speak. Similar to technologies like better haptics, volumetric video, etc. I doubt that we will watch only regular sbs VR porn in 5 years.