Blitzcrank as a One Ability Champion
Everybody finds Blitzcrank annoying. That's his purpose, I'm sure. He gets a knock-up, a silence, a movement speed buff, and all without mentioning his defining ability: the pull.
See, Blitzcrank is rarely banned (unless I'm first) because people think to themselves, "Hmm... he is never the champion that snowballed and kills everybody by going un-targetable and bursting my team (cough Fizz cough)."
So no, Blitzcrank is not a hypercarry.
But he CREATES hypercarries.
As I understand it, hypercarry champions are meant to have a weak early game, rewarding players that play well with a late game threat. However, give a hypercarry a Blitzcrank, and all they need to do is be ready for that rocket-grab to pull an enemy champion into his/her certain demise.
Blitzcrank requries no skill. There are no special plays to be made with Blitzcrank. Lee Sin has to pull off an "Insec" if he wants to displace the enemy team's high-priority targets. Blitzcrank makes sure he's in a straight line with his target, presses 'q' and can go to the bathroom. His job is finished; the kill is secured.
I get it; I really do. Every champion needs a unique signature style, and Rocket-Grab is intrinsic to Blitzcrank. However, there is a way to nerf it: terrain.
Don't let it pass through terrain. Stop it. A jungler could be peacefully slaying blue buff and then they're dragged to their doom because some troll pointed q and pressed it. So don't let it pass through terrain! Either let it only go through once, so that the target is pulled to the wall BUT NOT THROUGH IT, or not at all.
In conclusion, I will never agree with a Blitzcrank. The displacement is overpowered if not downright broken. However, not letting champions be pulled through terrain would be a step in the right direction, and it's an easy enough fix. Please Riot. In every Patch Notes, I read these beautifully written visions of strategic decision moments being the focus as opposed to "I landed one skill shot; you have been slain." It gives me hope. Until I'm up against another Blitzcrank.