I think those kind of glasses may be really useful for blind people. I have seen similar glasses targeted at blind people, that at least in theory, seemed to me like a good idea.

I recall the glasses also can write on the screen inside the lens, which makes me think they may be good for deaf people as well.

It's just that these use-cases seem uncool, and big companies seem to have to be cool in order to keep either their status or their profits. But I have a feeling the technology may be really useful for some really vulnerable people.