WOTLK Timewalking (Pit of Saron)

Is it me, or does WOTLK timewalking feel very overtuned?

I don't know if it's an issue with me being a BrM, i have no idea how well they're supposed to handle in timewalking dungeons, but I just ran pit of Saron with a fairly ok group, and my god, we were getting destroyed, we were doing all the tactics correctly, standing behind the saronite to clear stacks on the first boss, and I was kiting the last boss through the ice patches when he powered up, but it felt like i was taking more damage than a +10 key at times.