When I last read the book I found most interviewees had an aggressive or bro-like manner, putting coding skills over everything else. Made me kind of sad from the viewpoint of someone who has duties outside of coding
To me the interviewees didn't come off as you describe at all. They are discussing the subject matter, which is the focus of the book "craft of programming" (see: subtitle).
Also most of them (at least) are known to have a focus on the practice of programming itself. They are literally authors/stewards of established algorithms, programming languages, operating systems and browser engines. What else would would you expect?