Fortunately this is one of the rare times I experienced the Horde side at all, having done the scenario on my recently boosted Horder Hunter shortly before doing the Alliance side.
Its kinda sad though, that you really need to watch both of them to appreciate the circumstances... and Horde ended up with the better cinematic, imo. The Horde heroes barely made a showing in the Alliance cinematic, but the Alliance were all over the Horde cinematic.