Difference is that now there are regulations enacted that declares literally any service that custodies even small amounts a Money Service Business (CASP in the EU), requiring them to KYC all users.

That wasn't there before.

Fedis might still work for a while though, especially if the amounts are kept smal, cuz they generally don't bother going after small fish. But if major funds, especially from "illicit" sources is being moved thought mints, then Tornado Cash treatment may await