Why should my champions suffer because someone found an overpowered build for a way-too strong champion? Youmuu's being melee only screws over Jhin, Miss Fortune (who coincidentally can also do the KR build to an extent, but just isn't as broken, which actually speaks a lot about Lucian.), Jayce, and Kindred, Twitch, not to mention all the people who benefit from the stats when they use abilities like Varus, Talon, and even Zed.
As much as I don't like to admit it because I did play him (but with the normal, ER-IE-Shiv build) Lucian had way too much in his kit in terms of base damage and did too much damage at all points in the game, all while doing it at a safe distance with high mobility. The build contributed and brought his overpowered-ness to light, but Lucian has always outclassed and out shined every other marksman, save for maybe Ezreal.