So how did this go down anyway? First, I heard that Musk deactivated his already active satellites in the region and thus disrupted the attack. This article suggests that the satellites were not active in the region and Musk simply refused to activate them.
Which is true because those are very different scenarios. In one, he used his authority to disrupt one government's actions against another, thereby taking sides in the conflict. In the other, he refused to take an action that would help one side against the other, thereby refusing to take sides.
Knowing what I know of Musk, I'm currently assuming he is a Russian asset and helped them, but I'd like to know for sure.