Am I wrong for calling out Riot for rolling back reworks on Leblanc and Kogmaw when they didn't on..

Their reworks COMPLETELY CHANGED THEIR FUNADMENTAL PLAY. Ruined entire builds, and basically alienated the original player base.
They were just fine. Why do some heroes get reverts EVEN THOUGH THEIR REMAKES WERENT HUGE CHANGES TO THEIR KIT, while others had basically been replaced from existance, are still terribly unpopular, but lost their entire player base in the process?