Thresh is perfectly balanced. I don't know what people are whining about.
His death sentence animation that doesn't show you which direction it is going to be thrown is a healthy mechanic. Having to gamble on which way to go to dodge it is fun and engaging.
I think it's great that we have a champion that can completely lockdown an enemy on his own, but at the same time can pull a caught ally to safety from almost any situation.
Also making someone with this modest amount of utility a ranged champion is an excellent example of good game design. Topping it off with a second passive that gives him decent poke is... um... lc$ bigplay$
).
. but no one listens to me because i am bronze.
but yes let's cry about the one champion that makes support role relevant.