“I wrote a book on how PM is hard. It starts by hiring the right people. Of course, I wrote a book detailing how all the people involved at scale keep screwing it up. Buy my book.”

This a circular advertisement for a book.

I am guessing it’s more to with how most organize socially for human emotional reasons first and tacitly don’t give a shit about ephemeral nonsense except to play “Society: The Board Game”.