No, if Google can change the way web works from day one they can change anything they want. Don't forget Google is killing imap and dns already. Why not http to?
Also, Google explicitly states that it is collecting data in AMP Viewer [1]:
> The Google AMP Viewer is a hybrid environment where you can collect data about the user. Data collection by Google is governed by Google’s privacy policy.
I assume they collect information from HTTP request the browser sends when requesting an AMP page.
Is there anything preventing Google from changing this later?