All they have is some transfers from 2012 that this guy, Vinnik, supposedly made. Suddenly, the exchange is criminal, and thus it's okay to steal from its customers? If they could even seize anything -- no announcement of such -- but they have now made it very likely that the owners will disappear with customer money. What choice do they really have? The feds want to put them in prison for life.
This is how govs operate. Think of world history - even that is lies upon lies. US is the KING of the heap and the biggest source of lies and disinfo. Everything that comes out of US criminal gov is carefully honed propaganda.