Not true. You can throttle packets by source or destination IP block, and by throttling the connection, the player will be forced down to a lower bitrate rendition.
This is how T-Mobile performs their throttling, and could be done to any class of traffic.
This is how T-Mobile performs their throttling, and could be done to any class of traffic.
https://www.eff.org/deeplinks/2016/01/eff-confirms-t-mobiles...