I am inclined to believe that China is not very good with the environment, and the miners just gave a push to make such a decision, but I am sure that most of the miners in China will safely transfer to other countries.
kazakhstan be main purpose for mining relocation from CHina. And now finally China loss great opportunity from miners , how much money from taxes if they collect it in a year. Its really be great news for us if most miner moved from China , no more decentralization which is give CHina government have power to control cryptocurrency market.