I don't see anything wrong with it. Jay's face doesn't have any facial hair that would automatically classify it as "male". I don't see any reason why it couldn't be used for a robber.
Besides, from what I understand of what this set actually includes, it's intentionally giving the consumer a variety of different facial expressions so that they can choose to mix and match depending on the story they wish to tell. As such, the picture on the front cover is really only a suggestion for a potential scenario.