I love containers, and I'm sure webvr is great, but I can't see the majority of people caring at all about either one. Their existing niche of privacy aware people who don't like Chrome and are tech people who like to play with trendy new technology will be happy about both of those, but random people off the street probably won't.

Then don't talk about it from a privacy angle; I use containers so I can be logged in to my home and work accounts at the same time.

For most uses they are a long-lived incognito session.