From Elidroth:
I've removed the damage bonus with ISS, however you should now be correctly getting the agro increases as intended with the May patch. We got some code time recently to give me actual ways to affect your damage, agro, etc. depending upon having a shield equipped or not. Before it was purely damage increases. Now I can manipulate almost anything including agro bonus.
This is something I very much want to use to help diversify the warrior class in the future so you can better utilize your class skills when tanking AND when not.
Paladin DPS nerfed terribly, now Warriors are getting a big fat nerf to their baseline DPS as well. Warrior autoattack DPS was pretty high, but I just hate to see nerfs to anyone, particularly things that have been around for months. The only good thing to come from this is maybe we will see Warriors dual wielding again, it seems wrong that they always use a shield these days.