Remember, lore-kiddies:
When the dragon dies, the Empire dies
what's more, TES ontology is a two-way street, or rather a very sensitive weight-and-counter-weight pulley system simultaneously hoisting and lowering the protean, double-faced pre-conscious idea-forms which give shape and girth to the cosmic superstructure. One little tinker, just a tiny dikeying or shimmying down the line, and the whole system changes, the initial and residual shockwaves radiating out in a frustratingly helical Ouroboros-pattern which makes discovery of the root-cause near impossible; It would appear that an effect was the cause of its own cause.
It's enough to drive a time-god crazy...
Case in point: Aka, the guarantor of the Empire, is loosed, which causes it to crumble. In-tandem, or rather along a chiral causal-thread, the empire crumbles, which causes Aka to be loosed.
All in all, it's vicious cycle.