I think this is a similar dialogue to when twitter was up and coming. TikTok has also already raised their length limit a la twitter. Once VR/AR becomes popular we will probably have a corresponding short form viral media platform. And so forth and so on.
We were already on the internet blogging and chatting on IRC when Twitter appeared. Posting "Enjoying a coffee on the beach right now" on that new platform wasn't much of a revolution.
Using short video for content instead of text is a massive paradigm shift [1], let alone VR/AR so popular for people to routinely consume content that way. The information density of text is unparalleled, the best video platforms can hope is for video to work alongside text, not to replace it altogether. Same story for VR, and this one doesn't have the technology yet. It is too bulky, too slow, too cumbersome. One day, but IMO it's a decade away still before it's ubiquitous and replaces scrolling your twitter feed on the toilet.
1: "What about YouTube?" — YT replaces TV, it's not replacing text or blogging. The point of my comment is disagreeing with the idea that facial credibility will be the future of media. I don't know where I'm going exactly with my rambling, but I feel I would loathe a future where the "news" is delivered in 30 seconds viral-made video snippets.