how does azir still have bugs

"JUST SPOOKY ENOUGH: Fixed a bug where Mordekaiser and Yorick were unable to issue movement commands to Azir ghosts/revenants. AIN’T AFRAID OF NO GHOSTS: Azir can no longer spawn Sun Discs on top of active turrets after being turned into a ghost by Mordekaiser’s or Yorick’s ults."

"Q - Conquering Sands BATTLE STATIONS: All Sand Soldiers now move to the closest available position, prioritizing rows closest to Azir. COPY, GOLD LEADER: The Sand Soldier targeted by E - Shifting Sands will always be centered in the formation."

"W - Arise! SORRY, WRONG NUMBER: Fixed a bug where Sand Soldiers would sometimes spawn when Arise! was cast on a turret and vice-versa. KEEP YOUR SOLDIERS TO YOURSELF: Fixed a bug where Arise! could target turrets from a much further range than intended."

"R - Emperor's Divide YOU DON'T KNOW ME LIKE THAT: Fixed a bug where enemy champions sometimes wouldn't be knocked back. CLONE PARITY: Fixed a bug where Emperor’s Divide was ignoring champion clones"

HOW ARE THERE SO MANY 21 PATCHES LATER.