I think AMP is Google's next SPDY. As you know, SPDY eventually became HTTP/2 through an open standardization process, and Google has since deprecated SPDY in favor of the open HTTP/2 standard.
AMP is similarly open. While it is still Google-driven at this stage, other companies are already iterating on it and implementing their own AMP caches[0]. There's no reason to believe Google is attempting to "lock-in" users to Google (and this article provides no evidence of that).
Every major tech company is trying to keep up with the demands of users. They demand content that loads really fast. People in many parts of the world have poor access to mobile data, which increases the importance of this even further.
As mentioned in this article, both Apple and Facebook are also working on similar projects. At least you can send a pull request to Google's.
Is Google using its influence to push the web in a different direction? Yes. Is it a bad thing? I don't think so, but others may disagree. The issue is that this article provides no argument that AMP is a bad thing, but rather a conspiracy theory that it is Google's attempt at "lock-in".
I agree that requiring an external Javascript to be loaded is a privacy issue, and that should be fixed. How about contributing a solution?
If not AMP or something along the same lines, how do we the tech community solve the problem of delivering static articles lightning-fast?
[0] https://www.cloudflare.com/website-optimization/accelerated-...