So, he doesn't really have any personal experience to comment on what works or doesn't work at a large software company like Meta, the same way a SWE at Meta doesn't have any personal experience to comment on what works or doesn't work for a Professor at Georgetown University. Also, to be more specific, he's a Professor of Comp.Sci., not Professor of Psychology or Professor of Workplace Layout Optimization..
I read 2-3 of his books and concluded that he doesn't know what he's talking about. His books are 10 page blog posts tortured to be 300 page books.