The problem is that high cut damage weapons with high power strike are too effective against armor, so pole/2h users don't have any incentive to use the pierce/blunt weapons (other than for crushthrough, but that's a different story). Once you have like 45 cut and 8+ power strike, even guys in plate are pretty squishy (die in 3-4 hits).
Meanwhile, low cut damage weapons are woefully ineffective against heavy armor, so most 1h users feel like they have to use pierce/blunt. It's not that 1h pierce/blunt weapons are better than their pole/2h counterparts, it's just that the cut options are so inferior.
The solution? Tweak the soak/mitigation formulas so high armor is more effective against cut and/or less effective against pierce/blunt.