After watching the ad it seems an over reaction to an ad carefully pitched to its target audience. One only has to watch any number of self produced youtube videos to see that many young women are choosing to represent themselves in a way that is sexualised. You tut tut and shake your head and say that this shouldn't happen. But it does. There is nothing that is especially offensive about the ad and it even manages to show range of summer beach wear.
Perhaps what is more interesting is the additional product placement throughout the ad, I can only think that these companies are co-sponsors in surf comp.