In my opinion redundancy in a single business entity is no redundancy at all, especially if there's legal obligations of a soon-to-be-burning-books-again regime.
A better strategy would have been to found independent entities in other liberal democracies, so they can act as IP backups.
There was a great vpro documentary called "Digital Amnesia" [1] where they also interviewed the lead of the library of Alexandria, who was the only bidder to buy the national KIT library of the Netherlands and its dissolved inventory at the time.
Interviews with archivists, librarians, web archive and others on the topic. It's insane to see that nations don't want to preserve their history, science, and culture anymore.
But here we are.