Why hasn't Azir received a small rework by now?

I decided to pick up Azir again with the hopes that his bugs were fixed. Every single game I played I had an instance where my ult's damage didnt register. Even the enemy team felt bad for me.

So my question is: do you remember when Zed first came out? Everyone complained that he was bad and riot made a small rework to how his ultimate works and now he's played almost 90% of the time.

Why not change something small like increasing his leash range? Or removing the cast time on W? How about you rework Q an make it do what it says it's supposed to do and make the soldiers dash to the TARGET location and not randomly around the location.

You can even make it so that the leash we see only appears when a soldier can attack and not when he's standing still. I'm just going to keep mentioning stuff with the hopes that someone might like an idea. How about make his ultimate surround him with soldiers similare to jarvan's ult where nobody can enter unless they blink in.

Let's change his E. Let's make it so that the shield strength scales off AP instead of a HP. Let's make Azir op. I think he's earned it after all of the bugs and problems he's had. Let me know what you think. They changed how Zed's ult works and it changed his popularity. Please do the something similar for Azir!