Since most people here are programmers: some will love VI. VI has an awful interface for beginners. It's incredibly fast once you get used to it.
Since I've learned how to use both VI and Blender, I'd say that Blender is the VI for artists. The interface is great to work with, once you get past the initial steep learning curve.
>it has a API made of Shortcuts.
That... makes no sense. At all.
>A good User-Interface is something that adheres to a common users expectations of the virtual world.
So, because it has a bad UI, it had no UI? That doesn't make any sense. Just because a UI is bad doesn't mean it's nonexistant.