this is all my opinion and not based on any actual evience or facts but.....
I imagine they would rather go after the providers as taking out one big one would cut a few hundred or even thousands of people off...also, in court they are more likelly to get an outcome they prefer and possibly recoup some money, where as going after the individual users would probably be a waste of time and money.
I disconnected all my official boxes though just incase they started communicating back or something....Probably could never happen but id rather not take the chance...