Now that financial institutions and government are becoming interested in Bitcoin, which we all know how this is going to look like on the future. They would want to take control. If Satoshi is still alive, how would he feel and what if he wakes up one day decides to do what I don't want to imagine about?
Talking about Satoshi being happy or not, we all don't know whether he is still alive or dead. But what is clear is that Satoshi created bitcoin as a means of resistance, against the government's money printing machine, and to reclaim the value of money caused by inflation. Bitcoin also works by using consensus so that no one can control bitcoin including the government because bitcoin was created for freedom. Even if there are countries that use it as a reserve, it does not make bitcoin controllable because bitcoin is truly decentralized.
It is possible that they make bitcoin a reserve because they know that bitcoin technology cannot be controlled. That is why governments buy bitcoin and hold Bitcoin, the reason is simple. They want to dominate, that way they can become market makers. For example, the US wants to make bitcoin a reserve, they already have the Dollar, where the Dollar can control the world economy. So they don't want Bitcoin to get out of their control so they want to keep Bitcoin as a reserve.