From their page they just linked...
Tweaks
Streaming Video: Streaming video, such as content from Netflix, Hulu and Amazon, typically accounts for the highest data usage. Some video streaming providers default to High Definition which uses at least two times as much data as Standard Definition. Consider changing your default setting to Standard Definition to reduce data usage.
Is that a joke? I have a beautiful HD TV and computer monitors. You're telling me because of your inability to deliver on promised speeds I have to change my life around you? I don't think so. I pay for the agreed service I signed up for. Not what you come up with on a whim. Standard Definition in this day and age? You guys are sick in the head. And I know *** well this has nothing to do with infrastructure and is only a money grab. MOVE ON WITH THE TIMES. The internet is not going away, and people need cable TV less and less. You are just wanting to push us back to cable TV, loaded with commercials, watching shows on your schedule, instead of choosing what I want to watch when I want to watch it.
Completely infuriated with this move.