Because when you attack oil it will be considered as an act of war and they will counter with their war powers. Which they did. No civilian police action against Sergey followed, but military style seizures, bitmix closure and Bitcoin retrieval. This was not the FBI, but their criminal higher ups. Military style, with no civilian oversight.

Which is somewhat disturbing, because first the industry is still considered more important than civil services (city councils, hospitals). And second they will still continue using Windows services in their backbones. I have nothing against using Windows as frontends, but in the backbone of a critical company it's criminal negligence. Easy to hack, no backups, untrained admins with no idea about security. Wasting billions on money on theatre, and not working servers, groupware and email.