It could be, or it could be account stacking. Say I subscribe to HBO, Cinemax and get NFL sunday ticket so I take one of my recievers and leave it at a buddies house. He subscribes to Showtime, Starz and MLB Extra innings and leaves a receiver at my house. We could then both use Whole Home DVR to effectively give us the channels both of us subscribe to on all of our receivers (you would have to record live shows and watch them slightly delayed over Whole Home DVR).
That would be a big no-no and DirecTV would shut you down if they caught wind.