Can riot please Nerf Tahm Kench

TL;DR: Tahm Kench has such short cool downs and such little mana cost there is no way to punish mistakes. He is being abused by Low and high elo players to get LP. And Riot still hasn't caught on to Tahm even tho he is frequently picked or banned in bro league.

I have been playing League of legends for about 2 years, And I have seen a lot come and go through the meta. But this, This is absolutely Absurd. Tahm Kench is just unfair. There is currently no counter play to him besides Teemo, And if that play is gonna play Tahm He most likely bans Teemo. For being a tank Tahm Kench does more damage then a he should. Playing Vs him isn't fair or fun. He just runs in on you and gets his three stacks either Q or W then autos more and kills you. No counter play whatsoever. His abilities are on to short of a cool down with such low mana costs, there is no punishing him if he misses a Q or a minion devour. On top of it all people are abusing him to climb free to ranks they didn't work for, or belong in therefore making matchmaking harder for the people in high elo who have to deal with a bad player when Tahm is ban making them lose LP. And the fact that Riot still hasn't caught on to this is ridiculous. I mean for being such a big company, and how frequent tahm shows up in Pro play. They should have caught on to it by now. I decided to hop into a practice tool to see whats up, At level 1 Tahm Kench Q does: 80(+0) damage. That's more then bruisers abilities. It has an 8 second cool down and is only 50 mana. In one minuet I was able to get 7 Q's out without going under half mana. His W Is even more broken. Although it has a high mana cost due to it not going up when you lvl it up. It makes it very spam able. At rank one Tahm W does 60 damage +9% bonus damage based on target health. At max rank it does 240 +13% of targets health. That is a lot of damage for building tank whilst being a support. And the most absurd thing is that he can be played ANY role. In top he can abuse the non mobile bruisers. In Jungle he can run or ult into lane for a game and slow the enemy into oblivion. In Adc He can auto and then CC to kill and due to his E he cant die to the support or Adc. In support he can push you off of farm due to his E healing 20% of the grey bar at rank one, and 40% at max rank. On top of it He has so much health it becomes impossible to kill him late game. He uses all his abilities runs out of mana, and despite having no mana he still manages to escape due to his E costing NO MANA and being on a 6 second cool down. He can use it 3 times in a fight without punishment. This is ridiculous and I hope riot sees this and does something about it