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[SDaemon]

Sure, but the fact was pugs couldn't handle it very well.

True, but:

Well the first boss murdered lots of people because you could not burn it. The more damage you dealt, the more adds came out, and you had to deal with explosion stacks in a much wiser manner. I think things had more HP too. Zu was just nuts too, because if an egg hatched it was game over with most groups. Mobs hit pretty hard as well; lastly siren was absolutely insane for healers who had to deal with adds, confused people, topping people off before certain attacks, etc.

Is stretching things. Explosion stacks, an egg hatching, and even the bit about healers in the Siren fight, things weren't nearly that bad.