Problem is that’s not what happened. Apple moved data and keys to servers owned and operated by the Chinese government, giving them full access to all iCloud data. To quote Amnesty international:
„Domestic law gives the Chinese government virtually unfettered access to user data stored inside China without adequate protection for users’ rights to privacy, freedom of expression or other basic human rights. Chinese police enjoy sweeping discretion and use broad and ambiguously constructed laws and regulations to silence dissent, restrict or censor information and harass and prosecute human rights defenders and others in the name of “national security” and other purported criminal offences. As a result, Chinese Internet users can face arrest and imprisonment for merely expressing, communicating or accessing information and ideas that the authorities don’t like.“
https://www.amnesty.org/en/latest/news/2018/02/5-things-you-need-to-know-about-apple-in-china/
And then it is widely reported that they get the private keys so I can assure you they will do everything they can to mine the **** out of iCloud data no matter what the official deal might be.
Well thats just nuts. I guess being the first trillion dollar company is more important to them. Bummer. Still seems like they are holding strong on privacy for users in the US and EU...