It's an annoying abuse of language. "Banned Books" has historically meant people are getting arrested for possessing the books or stores are being prevented from selling it or publishers are being prevented from producing it.

This is essentially a clickbait title for "People disagree about what is age-appropriate content for a public school to provide to children".

Can they not hire some people to curate titles to ensure they are legit and anyone doing a bait and switch gets banned from the site altogether. It's not like they can't ID bad actors.

There are things that are simply not pedagogically useful in the limited instructional period in school. There are things that are simply not appropriate during early childhood development.

People who abuse and manipulate language like this are exactly why more traditional instruction is desired in certain school districts. Postmodernism is wrong. There are actually things that are true without the miasma of an artificial (and exhausting) social construction of reality.