To be honest it's a bit hard to believe this reporting has nothing to do with the price dropping ~10%, given that one of BitCoin's big parts of its value prop is precisely supposed to be that governments can't do this.
In the case of coins moving through exchanges, they can simply take the coins instead by threatening the exchange.
In many other cases they can also catch you when you try to use the money by converting it into a currency that people actually use to transact like USD.
Do not mistake theory with reality.
10% daily moves happened four times in May: twice in each direction.
Statistically, we should consider it just a normal, unremarkable day for Bitcoin.