Again, I had a weird group formed by the dungeon finder. It happened to me several times before. With my fledgling lvl 46 healer, I queued just now for the newly unlocked EH2 to get the skill point, and got an instant queue pop. However, the group I was thrown into had three dds and me as a healer, and no tank. Sure, random tanks are often fake anyway, but throwing in the towel completely and not even trying to find any tanks in the queue seems kind of extreme.
We got through the instance, because hey, it's just normal mode and we had soul gems to res squishy casters if they got too much aggro to handle it, but I hope this kind of mismatched grouping is not going to become a thing.