Oh, and hey, join a JK2 tournament, like the 2v2 hosted on TWL, and DON'T use 1 hit kills. We'll see who comes up on top. me or you. And I BET you that the prize money (or just prize) will go to a 1 hit kill move user.
It's part of the game, adapt to it, counter it.
Don't like it? Make a mod and take those aspects out.