Someone explain to me why Irelia was nerfed (Hard at that)

I enjoy what riot did with the irelia rework! I enjoy the abilities and the outplay potential of the champion along with the style of champion she is... now I have a quick question... WHY THE FLYING FUCK DOES A TOPLANE CHAMPION WITH A 49.89% WINRATE GET A HOTFIX AND A NERF IN UNDER 2 WEEKS, YET IT TOOK YOU 4 MONTHS TO NERF ARDENT CENSER???? DOES RIOT EVEN CARE ABOUT 20% OF ITS PLAYING POPULATION? IM SITTING HERE THINKING "HOLY SHIT THIS IS GREAT A FUN CHAMPION I CAN MAIN AND CARRY WITH WHAT A REVELATION"(adcs get that all the time you know twitch/tristana/kogmaw, but not top laners). IN LESS THAN A PATCH THIS CHAMPION GETS NERFED TO THE GROUND... WHYYYYY? SHE WASNT BROKEN AND CERTAINLY TAKES SKILL TO PLAY. WHAT IS THE POINT OF PLAYING THIS GAME IF QUITE LITERALLY MY LANE DOESNT MATTER AND WONT GET ANY LOVE FROM RIOT AND THE BALANCE TEAM? Im sick and fucking tired of putting my time into this game to have zero impact on it other than being a meatshield for someone else to have to carry. I dont like that, and I dont want to play adc. It's just getting very old guys.