Like Nyghtmarerobu said, some of you are expecting way too much from this SSS thing. It's a damn dummy that's just there to show you how much damage you're capable of doing under ideal conditions. Some of you are arguing that it's not representative of tank/healer damage in a fight (NO SHIT!?) and as such SSS needs improvements to compensate for that. Unfortunately, the only way to accurately gauge tank/healer damage is to stick them in the fight itself.
So someone'll probably say "well why doesn't SE just turn SSS into a simulation of the fight with its mechanics and stuff?". Well, child, at that point, you might as well be doing the ACTUAL fight itself since it'll be the same as the simulation...