I can't watch this...

This is a curious concept - humanity surviving sightless - but the medium is wrong. As a book it could work. There are so many opportunities in such a world for an author with imagination.
But this is just crap. People who wrote it have no imagination at all. We've seen plenty of fantasy stories about some kind of a "chosen one" - the only difference in this one is that there is a lot of hand-waving and people pretending to listen. Otherwise it's a bunch of tired cliches.