I haven't read the book, so I can't comment on that... but this comment resonates with me.

I think its similar to how people will completely write off a book/movie/person for _one_ thing. I get some things have more weight than others and its hard to trust a book if you find one error... but I've seen people say entire books (technical ones) are "trash" because they disagreed with one or two issues.

Seems like a modern phenomenon. Or maybe just rose tinted glasses... but it seemed people could disagree or even point out flaws while still being on the same "team."