Because we do the majority of the work. The governance body size will, however, expand with further non-Google members. So, the hypothetical "you just have to convince only one" is becoming less of an issue over time.

^ cramforce works for Google on AMP.

Of course it's always the benevolent Google ramming down their network down our throats. How would AMP bans work? You can't even read any email in any client?