The words "anarchy" and "authoritarianism" seem unnecessarily emotional and pejorative, and because of their semantic baggage I personally wouldn't use them in a professional situation. The author counts on the emotional color of those words to attempt an argument that both are somehow bad.

Instead of those words I'd suggest something like "schema on write" vs. "schema on read", or "persisted structured" vs. "persisted unstructured". "Document" vs. "relational" doesn't quite capture it, since unstructured data can have late-binding relations applied at read time, and structured data doesn't have to be relational.

And of course, modern relational databases can store unstructured data as easily as structured data.