Assumed Azir bug?
Assuming this is a bug, because if it's intended, it literally does nothing but add weirdness and clunkiness to Azir, so...
In my experience, attack-move-click does not make Azir.. well... attack move click with his soldiers.
It should be making his soldiers attack any enemy in range when you click to a location, like it does for every other champion (treating Azir's soldiers as his autoattacks, that is).
Example: You're playing cait. You move -> attack move click -> move -> repeat, aka "orbwalking", "stutterstepping", etc. Take a step, fire, step, fire, so on.
In Azir's case, his soldiers don't attack, and in most cases he doesn't attempt to move to the "attackmoveclick " location, either.
Makes it incredibly frustrating to play an auto-attack reliant champion.