Coinjoins aren't custodial, so there's no funds they can seize. The Feds are only able to access the data of Samourai's users since their wallet was designed to collect xpub addresses and IP addresses by default.
As if it wasn't possible to use it over Tor since 2019, or a VPN. Taking shots at your competitor even after they have been extinguished -- the kind of class I would expect from you.
Besides, nobody cares if you weren't sending money to North Korea-related or other watchlist addresses.