Definitely immersion. It's the solution for all of Skyrim's problems. Think the game was dumbed down? Then you're not immersing yourself properly! Bugs cramping your style? You won't notice them if you focus on immersion! Game too easy? l2immersion!
Hehe. As punishment for all our crying about "immersion" the DLC should be Flooded Skyrim. Everything underwater. We'll all be forced to roll Argonian or drown before making it to the block.
The next one should be Unbalanced Skyrim. Staying on one side of the province for too long will cause the world to tilt to that side resulting in all items and npcs sliding off into the sky.