It seems to me it is really good at writing. I would think it could replace the profession of techincal writing for the most part, it could help you write emails, (bring back clippy MS you cowards), it could be used as a frontend to an FAQ/self service help type system.
Have you read the article? You'd have to have 100% faith in the tech to allow it to side-step an actual person. Unless your site is purely a click-farm, you're still probably hiring someone to check it--so what's the point of having it?
