Why isnt DRAVEEEEN picked more?

So i dont see why people are not using draven now that he doesnt have the DoT like he used to have... i still find him the best ADC in the game yet no one even plays him... It can't be because catching the axes is hard because i do it with ease i doubt it is hard for anyone else its a simple concept .... i cant find one counter for draven except for supports with cc that can stun you when you try and catch axe but its not like you HAVE to catch every axe... every draven game ive played even if i was 1/3 in lane i would come back due to the sheer damage draven can dish out to even fed players... and this dude has a strong game always... he never falls off hes strong early mid and late game... i really think draven deserves a little more play.... i get he doesnt have too much mobility and his E barely helps him get away but yet i still see ashe being played by professionals all the time. I just wonder why no one plays him anymore... now bot lane is filled with lucians kalistas (Kalista gets wrecked by dravens) and a bunch of miss fortunes... it just surprises me that draven isnt a most played adc