The general consensus in that thread is that, while the Vision Pro can play “flat” porn videos on sites like PornHub, there is currently not an easy way to play 180 degree side-by-side videos on the Vision Pro, which is how most commercial VR porn is filmed.
Apple will do what it always has done. All the media players and let the user add whatever content they want. It’s been this was for years on iOS and iPad OS.
There is no shortage of media players that will play nudie vids in codecs that QuickTime doesn’t support out of the box.
It’s a v1 product. Apple is banning VR porn, it just doesn’t have a massive app ecosystem yet. The product is days old and has a small market.