Didnt read past the first section since that appears outdated already. AMP Project is run similar to nodejs by adopting an open-governance model. This was first announced here - https://amphtml.wordpress.com/2018/09/18/governance/ and the went live later that year.
https://amphtml.wordpress.com/2018/11/30/amp-projects-new-go...
In the link above you can see non-Google decision makers that drive strategy and vision of the project.