"TL of AMP here. Just wanted to clarify that we specifically requested Apple (and other browser vendors) to do this. AMP's policy states that platforms should share the canonical URL of an article whenever technically possible."
This is a strange (repeated) response. Google set up a web detour without users' consent, and has a flagger waving upset people back to canonical links.
Apple _is_ routing people back to the main road, not because of Google's suggesting it, but because it's the only reasonable thing to do.
The implication of your comment is that if Google has asked Apple to pass on the AMP links that they would do so, which I highly doubt.
A far more appropriate summary is: Apple is acting to correct Google's interference with web links; irrespective of Google's desires.
Apple is just following AMP's request.