even when this function is turned off by the viewers, it continues to transmit viewing information although the data is not retained by the server.
Does anyone buy the claim that their servers weren't retaining the data?
For this to be true, the TV would need to transmit to the server a notification that data should no longer be stored. While it's possible, I find it implausible that they would go to the trouble to do all of that, rather than just make it a simple client-side switch that just stops transmitting the snooped data.