Tahm Kench

So im a bronze level player, and rightfully so, i suck, but when the enemy adc, who me, my support and jungle have dead to rights is eaten then shot back to turret by tahm kench, who also gets away because he speeds up when he eats an ally.

Time after time again this happens, when both tahm and adc are below 10 % health, he eats them up and runs away...

Riot please look into this, it is really hurting the game by allowing an escape that shouldn't be there.