Earlier quoted context omitted.
That is incorrect. While you're idea probably is interesting to them, they are indeed leveraging the infrastructure to "live off the land" doing their own collect. They are very much doing their own targeting.
How would their own targeting relate to "copying of certain information that was subject to U.S. law enforcement requests pursuant to court orders"? AFAIK, telecoms enforcement requests subject to court orders in the US mean one thing, and one thing only: lawful interception of communication.
Remember, way back when, AT&T just gave the NSA full access to their network.