I find it revealing that while somebody with experience in songwriting finds the result dull and mediocre, I who knows next to nothing in the domain finds its nice and totally fine.
Same goes for other domains: philosophy, coding, writing, ...
It's telling me that this AI can generate content in many domains way better than an untrained human would with minimal efforts, while not (yet?) reaching the level of experts in the domain.
It empowers all the non-experts in these many domains to touch things they never could have before. This is an amazing tool.
This is not claimed by the article afaict. It's stated though that json spec/syntax is simple, and that it's simple as a language; my interpretation is that this means "simple/understandable/predictable for humans".