As we know in china everything is restricted, and everything is controlled by the government, from the internet to how the people think, and them banning bitcoin mining and going hard on crypto in general comes with no surprise, i was even surprised that they have waited until now to do so, and that is due to the fact that they are unable to control it and monitor the transaction that people have and with a growing popularity it would threaten their authority, so that is why they have banned it, and i am pretty much sure that they might introduce a crypto currency that they will be able to control.
for sure, they will increasingly convince their citizens that the Digital yuan is much better and safer than Bitcoin...
since 2013 the Chinese government has shown their distaste for Bitcoin, the reason is because they can't control Bitcoin and it's very dangerous for their country. communism is really dangerous and stupid.