The mobs in Probably hit about as hard, if not a tad easier, than Wrath heroic mobs. My DK gets hit for between 1500-2500 per hit in ICC purples. Yeah, the greens and blues put those hard earned purples to shame too. So, yeah, I can see rogues getting slammed and paladins living longer. They can heal while rogues just have recuperation. It's handy, but not as good as paladin bubbles and self heals, etc. I've noticed in this new xpac that I've had to use Gift of the Naaru way more than I've ever had to use in the entire game, especially in Vashj'ir since you can't eat or drink under water.