Flattening wpf curve to allow 200+ wpf build is horrible idea. Better would be to make it even steeper (especially after 180 wpf mark) but give more points per WM level.
About pole vs 1h vs 2h balance, I agree that is borked atm. Mainly because 2H have reach (poles also have decent reach), damage (poles have slightly higher), speed (1H have higher speed but that's compensated by short reach) and most importantly 2H have wonderful animation which are great on all four directions, where thrust is just too good.
Compared to 2H, poles have 3 1/2 good animations, and 1H have 2 good animations (one good and second are right swing and overhead combined).