[Gameplay] Confusing Interactions Between Azir and the Ranged/Melee-Only Items

So I decided to test out Azir's interaction with Runaan's Hurricane in a custom match, and I found something interesting: when he does his own attack, it functions as normal (the light orb shoots the bolts). However, when he commands one or more soldiers to attack, the bolts are not fired.

Now, I thought this might be because technically the attack is coming from the soldier, and thus is at a shorter, more "melee-like" range. I decided to sell to buy a Ravenous Hydra . Unfortunately, as it did not answer my questions, it performed the way it's supposed to with marksmen, which is not at all.

So I'm wondering, if the Sand Soldiers' attacks are supposed to be ranged attacks, why Runaan's does not perform to its full potential the way it's supposed to with a marksman.

TL:DR The Ravenous Hydra's basic attack passive does not perform at all on Azir (as it should be with a ranged attacker), while his interaction with Runaan's Hurricane appears to need some maintenance.