I'm getting the vibe that you...
A. Hate the Harlem Shake or any variation of it.
B. Used this opportunity to do some good old-fashioned racism for some zing.
Animation is very well times and flows nicely, and the drawing style was derpy, but I suppose it was the style fit for this particular film.
5 because the Harlem Shake sucks, good animation and flow, and for not being afraid of making the joke that was too easy.