I understand, but I still don't understand why T-Mobile couldn't accomplish the same thing just by making the Binge On pipe completely content-agnostic and strictly rate-limited. Why would they prefer to re-compress the video themselves, as opposed to simply providing a slow connection, which the video provider can detect so that the video provider downgrades the video automatically?
Regarding: "T-Mobile wants to compress it, not let the content provider decide what bit rate to do it at, because this is about their network, not just one user on it.The fact a publisher might be capable of sending 1Mbps to a user doesn't mean this is in the best interests of everyone using the same tower as that user."
Well yes, T-Mobile wants the provider to send the data at a slow rate, not at the rate the user would prefer, however couldn't they accomplish the same thing just by rate-limiting the network?