The reason the book has been influential is because "decolonization" is this abstract thing a lot of people want to care about, but it's unclear what it means to do something about it and this book (which is aimed at faculty) provides concrete guidance on how they can change their courses if they want to do something in their classes.

Anyway, 1 out of 16 comments appears to be from someone who opened the book, and the other comments are all from people who lost their minds

because they saw the word "decolonization" + replies. From the comments, people clearly don't know how the word is being used or what it means in any context, but they know it's definitely bullshit!

If you want to argue against decolonization, ok, make that argument, but getting so mad when you see a word that you write a rant without finding out what it means seems odd? And likewise for seeing a certain style of cartoon and then feeling compelled to write a rant about how the author sucks.

At a meta level, something I find funny is that there's a group of people who find the concept of "triggers" and "trigger warnings" to be total bullshit because words can't hurt you, you should just deal with it, etc.

That's not an inherently incoherent position, but people in this group seem disproportionately likely to absolutely lose their minds when they see certain things related to tech or engineering, like, furry-style cartoons, the word "decolonization", trigger warnings, etc.