Here's the article about the ban: https://cointelegraph.com/news/ban-complete-china-blocks-foreign-crypto-exchanges-to-counter-financial-risks
This does seem to be the real deal, and I have to say I'm glad. Not because I don't want Chinese citizens to be able to buy crypto, but because this government and its FUD has been the cause of a number of dips. If they're out of the market, we won't have to deal with this mess again. Not from them, anyway.
At the very least, they're out of the way.