It's an excercise in futility really, isn't it?
They are never going to break the charts because there will always be a stigma about image. People are drawn to the media's definition of perfection. Although, if they made people feel more comfortable about who they are, then it can't be the worst thing.
At the end of the day, even if someone comes with the view that it is promoting obesity, if a person truely wants to lose weight they can. Seeing something like this won't change there mind on what they are happy with.