We're hitting the middle of 2018, can we finally address Kennen mid's wave clear problems?
The primary problem being that in order for him to clear a wave, he has to run directly into and threw the wave, which isn't remotely safe or possible (even if it's under the turret) while he's being sieged after bottom turret falls.
This effectively starves him of gold and removes him from the game, without having any way to remain/get back into the mid to late game.