The main US strategic advantage over Russia is the networked military platforms under the "Total Global Awareness" paradigm which are able to deploy smart precision weapons, and the satellites are at the core of it. In general, one has either to build its own capabilities up to the level similar to the opponent's, which isn't an option for Russia in this case, or to bring down the opponent's capabilities to the one's own level, and that is the only option that at least somewhat plausible for Russia here. So, it is pretty logical that the satellites are going to be the first priority target as much as it is possible for Russian capabilities.