Possibly to make it look like it was one of us? Give it a target that is communications related, but not something actually valuable? The thing with this sort of false flag attack is that to complete it, they have to catch someone so that they can say that it was a Trump supporter, and then we'll be able to look into them and see that they were a total leftist wackjob, as they always are. But then of course, no one will listen.