Huh, odd. Every healer I have been with in dungeons in that range (that we finished) has told me I am pretty easy to heal and am able to take a beating. I honestly haven't noticed anything different, tho I do cycle my cool downs liberally on trash mobs as they tend to hit a lot harder than bosses (if you avoid mechanics). I will say this, I hate Sunken Temple with a fiery passion and outright refuse to go back there. I leveled myself as fast as possible to 38 to get to the storyline dungeon and avoid ST. Every duty finder group I had was terrible. DPS who would tunnel the boss, ignore bees, and ignore doom. I am sure with competent players it would have been fun, but with those groups? Forget it, never again. Honestly, if groups are this bad the rest of the way I may just skip duty finder entirely and only dungeon when I have to.