In the comments there we get the two typical responses: "it's fun and creative" versus "it's a vile, tasteless desecration." You might expect me to come down on the side of those who dislike the whole idea, but I have a bit more nuanced view. I don't think that we should be in the habit of thinking that any composer, even one as great as Beethoven, is not to be desecrated. A piece of music is not a sacred object. It is also kind of fun to hear this familiar music in a radically different arrangement.
But notice what happens when you alter Beethoven in this way: instead of the shades and hues of the original, we have the more one-dimensional motoric frenzy of Cuban dance. Nothing wrong with that, but it is like taking a colorful original and making a sepia reduction. It rather illuminates the quality of the original, doesn't it?
Or, in a more romantic vein:
Essentially, rumbaizing Beethoven takes a complex manifold of musical moods and gestures and turns them into a single mood.