What was seized? domain name and centralized Whirlpool coordinator? They already had plans to shut it down and if more continue to update to Samourai Wallet 0.99.98i_dexwp or any fork of that wallet, they will be able to use Soroban without any problem.
What happened is that Founders And CEO Of Cryptocurrency Mixing Service Arrested And Charged. The authorities may have found the data of the centralized Whirlpool coordinator, but this should not affect Samourai wallet.