Maybe the same FSB agents that were driving his paranoia. Assuming they knew about the attack, they could get a bigger win by stopping it and removing Starlink from the equation at the same time, than by stopping the attack with military means.

Even if it didn't, you have to think about military applications of your tech...

“There was an emergency request from government authorities to activate Starlink all the way to Sevastopol,” Musk posted on X, the platform formally known as Twitter that he owns. Sevastopol is a port city in Crimea. “The obvious intent being to sink most of the Russian fleet at anchor. If I had agreed to their request, then SpaceX would be explicitly complicit in a major act of war and conflict escalation.”