This is a UI prototyping tool, and a potentially good one at that. It does not develop what a HN audience would call production ready applications. That being said, "Production Ready" as used by this author is very different than what "production ready" as used by the HN audience means, a look at the end of the linked video where he claims a checklist with drag and drop support and cookie-derived sessions next to is "Production Ready" should sufficiently demonstrate that.

And that's okay! It doesn't need to have replaced the entire Web Developer career field, it can just be a cool UI prototyping tool. But I might suggest to the author to reduce the scope of their claims a touch, as it would engender more positive discussion.