It's almost like Google's talking out of both sides of its mouth: On one side, to sell through AMP, they talk through how much it benefits people with constrain

It's almost like Google's talking out of both sides of its mouth: On one side, to sell through AMP, they talk through how much it benefits people with constrained/metered bandwidth (3G) as a worldwide concern, and then are just fine with auto-playing videos. For a company hyped up enough to peddle performance as a first-class citizen, this is a very questionable decision.