To a far extent, the US government are right in they decision to move the mining farm away from a military base, this is not debatable at all since it matters of security intelligence.
Having a military based and a bitcoin mining farm in the same location will lead to a more severe security challenge in the future, so it better to prevent that from happening as soon as possible, this is not about the United States government and Chinese government.
Obviously, this is a fair reason and if China wanted some explanations, then this is enough for them since this is not gonna make them waste their money rather they are just being warned right now not to do anything funny regarding their intelligence. It could be used for monitoring their moves and countering them whenever a war breaks out between these two heavyweight countries the US doesn't want that to happen and neither any country in the world will let such foolish things except their leaders are fools. But the sad thing is, that crypto will be highlighted and used to confuse investors once again.