It's also possible that dodge chance is not correctly being factored into the displayed "chance to hit" on the UI. To test this, I had my level 2 Sebille shoot at Bugsy, the little dwarf card player in Fort Joy. Sebille was using a bow that was one level too high, so her displayed chance to hit was 75%.
I kept Bugsy CC'ed and shot at her 10 times. The first 9 attacks missed. The 10th killed Bugsy. At 75%, I should have hit on 7.5 of the 10 attacks. This situation continued for as long as I was using a weapon that was a higher level, so its also possible that there is a bug in how accuracy is calculated with an over-leveled weapon.
Maybe Raze can give us some input on whether this is a known issue?