I don't really understand the topic: if I go to Hazel and Bell website it says that the comics are meant for 18+ adults. But the article is ablout school librarians for children not allowing the comic.

School libraries were always censored heavily.

Using online payment processing for censoring is a separate issue that unfortunately comes up heavily (money is supposed to be neutral as long as its used legally), but they shouldn't be mixed together with the school library question.