From the article you linked, child sacrifice allegations came from an anonymous FBI interview in 2019 and are not confirmed by any credible evidence. There are no cannibalism allegations; the word "cannibal" only appears in innocuous contexts.

So child sacrifice and cannibalism are only technically "in the Epstein files;" there's very little evidence that anyone did those things. For other readers, if you hadn't heard about this, that's probably why.