might make warspear and lower a bit too powerful
It would finally work as intended that way. I wouldn't be against it.
Besides, it's hard making a 150 reach weapon with just 1 attack direction (with shield) overpowered by giving it 28 pierce. It will still suck in 1 v 1 and it's a bit short to be very effective as a support, unless you go for high agility which will in turn lower the damage output.