This is certainly moving the goal posts... is everything in the future going to be VR? I doubt it. There will be a market for streaming 4K@60 for a long time.
Over on /r/oculusquest, Shadow's streaming PC is somewhat popular for running full PC VR games on the portable Quest (as not all the owners have full gaming desktops). So it's not like it's impossible.
I’ve actually experimented with this a bit and while it can be done it isnt at all playable for 90% of games (anything requiring even moderate response times).
Oculus has been working on home desktop to quest WiFi streaming and say the experience isn’t optimal yet for release and that is all local.
But the need for lower latency is increasing as well (a la VR)