Anyway, I use it once or twice a month to play a zombie shooting game with my brother, who lives overseas. We shoot zombies for an hour and chat. It feels kind of similar to golfing, bowling or somesuch. We can't do those in person, so we do it in VR.
So for me, VR is kind of a comms tool. A place to catch up. Alternative to video calls. Calling is great, but doing something together it just a normal way of bonding.
As always, the tech is a canvas. You can paint any pictures on it. That said, yeah... This kind of tech & gaming has shown a real proclivity for isolating us from reality and each other.
OOH, I think social VR has a lot of immediate potential, with current and next generation tech. It'll take a while before the user base, hardware, etc. will support blockbuster gaming, films and such. Social stuff can be more lightweight and simple. In that sense, fb is a sensible home for VR.
OTOH, fb's approach to software if goddam awful. Their whole paradigm is making software that makes people do things, not software that people do stuff with. That's likely to tip the balance in the antipattern favour.