I have personally seen this ad and ads like this with the other 10 products. This ad is representing the stereotype that diet drinks are for women and the idea of a 10 calorie drink being one for a man because it does not say diet in the name of the product. This ad was put on Facebook and encouraged men to become a part of the Dr. Pepper 10 product fan club.
I think that this ad is productive in reaching out to their target audience which is men. With this stereotype that diet drinks are just for women and the 10 calorie drinks are for men, this ad is strictly aimed at men and excludes women.