User blog comment:Jyggalag Daedric Prince of Order/Season 9 A Bust?/@comment-81.152.91.109-20130530222126/@comment-1509826-20130927171131

Because if they did, there would be no way for the brothers to defeat it. And how do you strech such a powerful being out over one season? If it was really that powerful it could probably achieve all its goals and kill everything in its first appearance. All powerful enemies are not a good idea.