"""We will continue to experiment with things like DOM to texture. It is still difficult to allow web content to be part of a 3D scene."""

This is the most important missing piece, are their bugs for this?

Until we have html/dom textures in vr I just don't see webvr being very successful.

Just like the headset isolates you from the room, the lack of normal web content in vr/mr is very isolating.