Azir is has a place in support, and here's why.
For anyone who has played azir much you will notice a few things seriously hampering your performance.
1.) You will miss cs in laning phase. - Standing in range to cause your soldiers to auto attack is standing in range of enemy gap closers, meaning if they get tanky enough to pass through your front line they can zone you, even if they cant damage you.
2.) The soldier AA's piercing minions, unpredictable animation start, and aoe effects will damage unintended minions if you are also worrying about their positions in relation to the opponent
3.) The cooldown on the full q/e combo leaves you too obviously open to opponents who are paying attention.
This I've found to be shored up in the support role, as Azir's weakness's are covered up while his strengths are able to be used.
1.) He can focus solely on zoning 1 if not 2 champions that will never get tanky (due to adc's need to carry)
2.) He plays incredibly well under your own tower if pushed, and can also do the reverse and harass enemies trying to farm under turret with ease, he is also better at pushing than other supports due to the above coupled with soldier bombs.
3.) His escape is needed less often as the friendly adc allows you to be able to save your escape for ganks only (not forward gap closing)
4.) He can provide initiation/body blocking/ and get negate ganks or turn them around entirely with his ultimate
5.) After laning phase he farms with ease (with some levels and items under his belt) and can recoup the gold loss of the support role
I've even noticed my gold income has bizarrely been HIGHER from the support position, as has my impact on the game.
Bottom line: Azir is TEAM PLAYER, if he is sequestered in top lane, or out maneuvered in mid lane he loses so much of what makes him worth playing.
