Why does Riot always manage to ruin the game past midseason every year?

Ever since season 4 they've implemented features which really are not fun around and are absolutely broken.

First we had Feral Flare, then we had the Juggernaut update, then we had the resurgence of the tank meta, then we had Ardent meta, and now we have Kai'sa, Irelia and Akali who are so overloaded that you HAVE TO permaban them otherwise you risk losing from champion select.

For the love of god just stop bringing in features which clearly aren't fun to play around or play as...