I'm not suggesting anything. That video should be age restricted, because that same music video is age restricted by youtube on other channels. Youtube is not being consistent. It is clearly against their policy: uncensored nudity.
There are worse examples:
http://www.youtube.com/watch?v=49ECHHSg3nk&list=PL7E74CACDAD956FB0&index=1&feature=plpp_video

This video depicts an eye being ripped out and forsed inside a vagina. Also lots of uncensored nutity and blood. Clearly not PG13!