NAT can actually still be pretty useful in IPv6. But in IPv6 it's also realistic to do prefix translation, so that while there is NAT, it doesn't foreclose on the possibility of end-to-end communication.

Multihoming, site renumbering, and a few other issues are areas where work still needs to be done. Prefix translation is a current workable answer to some of those problems.

Learning there was such a thing as IPv6 NAT wasn't quite as depressing as learning about a forgotten historical genocide, but close.