I feel like riot is not getting positive feedback on those Teemo changes thats why...
It never left testing phase. As a mastery 7 Teemo main, the thing is, Teemo rework ain't that bad, what's bad about it is the reduced damage he does and him trying to mimic Twitch with reduced ranges. His AP ratio should have never been touched, That's all I'm saying. He is a Lane bully, Wins lane but lose late game teamfights. His whole theme is resolving around being the devil of top lane.