There’s no way that the subtleties of a human narrator can be properly synthesized by AI. This technology will work great for reading news articles, but you need more than the content of the sentence to be a good narrator.
I’m sure they can make it sound like a droning, monotonous human voice, but people want stories for CHARACTER, which can only be captured by actually understanding the larger context into what’s happening.
This is as ridiculous as trying to have AI act in movies.