It was a long time since I'd given AA a serious look. Although it's Grant Morrison's first major Batman work, it didn't seem to fit with his much-later run on the character. Given more scrutiny, however, it does relate to Morrison's later work, including his Batman run, in interesting ways, even though it's certainly not part of the same plan. Perhaps more interesting is how it fit in with other works of its time. AA was definitely a ground-breaking work, worth another look if you haven't read it recently.
My thoughts, in much more depth, here:
http://rikdad.blogspot.com/2016/01/r...m-serious.html