Actually, mate, that's exactly what Mt. Dew appears to be saying. The line up consists of only black people, implying that they fit an animal's description. Furthermore, yes, presenting a woman being beaten and being too afraid to identify her attacker as though it's a joke is sexist, tasteless, and disgusting. In fact, I fail to see why anyone would have difficulty seeing how this ad is offensive.
Incidentally, you struck the nail on the head when it comes to what makes things racist. You just failed to actually identify as racist, which is baffling.