It doesn't matter if the mine is located in Alaska, or in Australia, the outcome is the same and the only thing the government can do is shut it down, in which case the owner will move to another country.
Before the owner of the farm has moved to another country, the smaller miners connected to its pool (which account for the major share of their network) have switched to another pool already.
At worst you'll see a slight dip in hashpower if the owner of the operation shuts down temporarily, which other miners will welcome at any time. Lower hashpower means lower difficulty if the gap isn't filled up by other miners.
The mining aspect isn't as centralized as people think it is. Overall, there is no such a thing as being completely decentralized network. We just have to make sure it's decentralized enough to avoid potential censorship.