I dont think China was behind it, instead look at Korea and Japan. Korea is heavily invested in bitcoin and bitcoin cash!
China man China! What Korea & Japan are next I China minors plus China shadow Gov or deep state!
Bitcoin will be own or control by Chinese Gov, same as Ether is contrôles by Russian Gov...
Watch and you will see it clearly soon.
There are big players in China for sure but i dont think it is all behind China. They did play it very smartly though, the way they manipulated the market!