While I don't think this has yet shown 'the killer app' that will make everybody want VR; I do think that this has a killer feature that will revolutionize the segment.

Facial expression matching on your avatar.

The ability to make an avatar of yourself is kinda cool, but match the eye-tracking and other internal cameras you now have a way to have your avatar facial expression match your real-life expression. And THAT is what flattens the uncanny valley.

Regardless of a 2D 'Teams/Zoom' meeting or a special 3D Facetime, you will (A) always be looking directly at the camera, and (B) your facial expressions will convey all the hidden subtext that missing in communication done via voice-only.

This is a WIN over having a webcam pointed at your (messy) room too.

I am not an Apple fan. I do hope that this can inspire the spark that gives us the VR killer app.