I agree that they care just about money and nothing else. But considering the book was a criticism of the comic book industry as a whole and mainstream comics in specific, I don’t think they did understand it.
ofc they understood it but... it's not like they were just going to shut down DC and Marvel. Instead, a lot of folks went and started independent publishers, many of which do not focus on superheros, and now we have library shelves full of graphic novels in various genres.