You need to understand that Mr. Fowler works for a consultancy.
LLMs sound great for consultants. A messy hyped technology that you can charge to pretend to fix? Jackpot.
All things these consultancies eventually promote are learnings they had with their own clients.
The OOP patterns he described in the past likely came from observing real developers while being in this consultant role, and _trying_ to document how they overcame typical problems of the time.
I have a feeling that the real people with skin on the game (not consultants) that came up with that stuff would describe it in much simpler terms.
Similarly, it is likely that some of these posts are based on real experience but "consultancified" (made vague and more complex than it needs to be).
