You get better placement for using it (and not just with Google), so if Apple were to redirects their users to your regular site, why wouldn't you still use it?
AFAIK, you do NOT get better placement for using AMP. You get better placement for having a fast site, which you can do easily without AMP.
This is not Apple fighting AMP.
"AMP's policy states that platforms should share the canonical URL of an article whenever technically possible"