Shouldn't affect xbow, only HX.
5-6 PD/PT and above 170 wpf, you gained around 80+ extra wpf from an exponent multiplying your wpf. Agi-focused ranged often times went up to 250+ wpf after the PD, armor, and HA penalties (in-game, it maxes at your original wpf). Now, the penalties are working as intended, and the penalties themselves had to be reduced to account for the accuracies people are already used to.
The bug was so bad that agi throwers outdamaged strength throwers for instance (that was the first time I noticed something was odd). Unfortunately, there was no formula to make everyone happy, since 15/24, 18/24, etc. were the builds most affected. There will be better differences between builds, making archer vs archer fights more varied, hopefully.