I think the goal is simply to mitigate, not eliminate. I'm sure by now software companies know trying to eliminate piracy is like trying to make cockroaches go extinct.
I think part of the goal is to have, in the record, a statement that any app that is otherwise legal but requires the user to download cryptographic keys to use is a de facto violation of the DMCA. I think that's why they're settling so easily here and likely paying the settlement for the Yuzu folks. They're hoping that they can use that as precedent for future cases.