Sadly, the over-eagerness to nerf champions instead of having players figure it out is way too common in LoL. Partly its because the majority of LoL players are immature and unwilling to try different strategies and combinations to combat some of the so called "overpowered" champions.
Take Rengar for instance, his main damage sources are either q or w depending on if he is ap or ad. Players are actually crying because he can potentially two shot an adc. Yeah, the weakest/lowest hp member who should always be in the back or surrounded by his teammates. They (the players) are demanding that they nerf an assassin for doing what he is supposed to do: assassinate key targets in the battlefield. Instead of players placing pink wards around their lanes, having the main tank buy an oracle, sticking together, save some of their cc for when rengar comes out of ult, etc. Players are determined to go the lazy route and instead demand for Riot to nerf any champions that change their own gameplay/strategies.
Sadly, until players themselves growup stop crying out for a nerf the first week of a champion release, LoL will slowly continue to become more of the same old same old.