Ok, but they still didn’t actually seize anything. This is like saying they seized your bank account because they took the wallet which has your debit card in it.
No, seizure is a legal concept. There's no physical bank account the feds can somehow move into a locked room. The bank retains the technical ability to let you use your seized bank account anyway. It's just a bad idea because it's illegal, and if the bank did that, somebody would get into a lot of trouble.