This does not impress me in the slightest.
Taking billions and billions of input corpora and making some of them _sound like_ something a human would say is not impressive. Even if it's at a high school vocabulary level. It may have underlying correlative structure, but there's nothing interesting about the generated artifacts of these algorithms. If we're looking for a cost-effective way to replace content marketing spam... great! We've succeeded! If not, there's nothing interesting or intelligent in these models.
I'll be impressed the day I can see a program that can 1) only rely on its own limited experiential inputs and not billions of artifacts (from already mature persons), and 2) come up with the funny insights of a 3-year-old.
Little children can say things that sound nonsensical but are intelligent. This sounds intelligent but is nonsensical.