Also, they can seemingly recover from history/Causality (?) erasure, but what about Fate erasure? Causality, Karma, whatever are just subsets of Fate in-verse, along with space-time shenanigans. And Fate surpasses time (Direct statement, though on what it grants is unknown as it currently stands), with those who had a portion of their history erased, the River of Fate still had everything that had happened in that erased time.