And you're comparing apples to oranges. One-handers and polearms both bring other things to the table than two-handers. And you're attempting to justify the overnerf to a two-hander by using only examples from OTHER weapon classes.
I'm just saying your idea that unbalanced = shieldbreaking OR crushthrough is simply put wrong.
And the weapon sure as hell has a lot of use even without crushthrough. You've got a cheap, reasonably fast, high damage tincan opener with knockdown. If that's useless, well, there's no pleasing some people.