You may say 'it's different this time', but China has spent the entire lifetime of crypto's existence banning and re-banning, and profiting from the pumps that come as a result of their influence.
They're just sniffing out the obvious opportunities to rake it in
The difference is the courts says it legal. It is one thing when the party does it but the courts overruled it.
Now, how separate are the courts? That is another question.