If the designer is a girl or not is really not important.
I'ts a game.
If you don't like it, don't buy it.
It is not like you have to watch it even if you don't want to (like a tv ad).
And the message is even good, if you eat a lot and get fat is going to be BAD for you.
Those ponygirls should ask Melissa McEwan the writter to Write "Getting fat is bad for your health" in a piece of wood and stick it in their "fat-loving, homonormative--holes"
End of Year prediction:
wii: 37 m
360: 24 m
PS3: 20 m