The Mistake:It's an easy fix, and it should be mentioned to Bethesda. And you, the one who got wound up over people mentioning a simple error ... when someone makes a terrible error on their business card, you definitely want to tell them ... or else who would hire them, seeing that error? You're their friend, making them look better to a professional world.... so don't get so bent out of shape for people clarifying errors.
Well to be fair, messing up an animation like this is like missing a period on a resume. While it probably won't cost you the job you are applying for, its good to know about the error.
The only time I can see something like this being a real business card error is if Bethesda started providing out-sourced animation work, in which quality and accuracy are more important on the individual level. But since they aren't doing that, we can just call this a simple mistake.
On another related note, how many of you are going to actually hunt down that windmill and see if it gets fixed when the game comes out? I sure as hell am! XD