There's absolutely nothing impressive about Skyrim beyond what one would expect from a game built for this generation's consoles. The art is a huge improvement, and it's technically superior to the last Elder Scrolls title, but it's next to nothing beyond Oblivion's scope and other games of it's kind. People are hyped for it, and it will look nice on PC, but it's nowhere close to being a graphical benchmark.
So yeah, it's not surprising stuff like Offset looks a generation ahead. These are games built for PC and built to push the crazy good hardware we've got to the limits, so you get an abundence of awesome shaders, textures, physic and geometry calculations.