And yet it still contains what looks like human error, e.g. the "Software Components" table mixed up the columns for the database.
That's much more like an agent error than a human error.
It's quite common for LLMs to mix up values between columns in a table. It's often referred to as a structural hallucination, since it can happen with all kinds of relationships that form structures, not just columns in a table.
Hmm, seems their ontology didn't fix this assuming they use it themselves.