I don't think its hazy. video pass through on these headsets don't extend the VR into AR, its an ease of use function to let you navigate your environment while wearing a headset. It might be in the future cheap headsets have AR, but that not is the case today.
VR replaces your world with a virtual one. AR casts virtual things into the normal world.
Camera pass through isn't AR, the same way a security camera isn't AR just because you could potentially view it on a VR HMD. There needs to be the component of combining the normal and virtual worlds. Camera pass through is just an ease of use feature.
> Camera pass through isn't AR, the same way a security camera isn't AR just because you could potentially view it on a VR HMD.
I would suggest that this is a very modern interpretation. Pokemon go is an "AR" game, even though its camera-mediated. Wayfair has an "AR" furniture viewer, apple has "AR" feature to view the new mac mini: https://www.apple.com/mac-mini/ (search for AR)
as I said, its hazy, and its only now that laser/waveguide see through displays are possible that we can have real-world overlays.