I dont think they are doing themselves a favor with a bullshit marketing video like this. They seem to have a great team but all we have seen from Meta other than pre-rendered marketing videos has been a bit rough, to put mildly. Example [1]

Id love my virtual AR 70 inch high res computer display though, so i hope they succeed ;)

[1] http://www.youtube.com/watch?v=iWPdAhhUWD0