I think the main issue is that authors published books with the intention of human not machine consumption. Nobody though to put a contract in a book saying "h

I think the main issue is that authors published books with the intention of human not machine consumption. Nobody though to put a contract in a book saying "human consumption only, not to be used to Train AI". Meta pirated the books in question, but what if they had bought a copy. Oddly cracking the encryption, a violation of the DMCA might be the infraction.. The courts have some tough questions to answer here.