>>269958741
but why the fuck would they do that?

see, that's the difference between valve's mentality and facebook's 
one is just greed and the other is actually trying to push for new shit, a dev getting money and notoriety from every single person that owns a vr headset is much better off than one that just gets a couple millions off of some big ties' wallet that only a handful of people will play, and all that just to sell their headset