I can confirm this.
I have Shield Specialist, Vicious Smash, and all other dps AAs maxxed. I picked up a Mindtaker on a Mindshear raid this week (
http://everquest.allakhazam.com/db/item.html?item=80751), and went to ROI equipped with 1H and board. I took noticeably less damage, and was able to take on a significant amount of additional mobs, all the while letting riposte slays do its thing. I netted at least an additional AA, maybe even two. At one point I actually got too overconfident and overpulled and died.
Thus the inexact amount of additional exp from the LoTD run.
I'm going to use 1H & board henceforth on lesson burns.