Lauren Faust's comment on the issue (paraphrased):
"Basically, when talking Supply and Demand, the Demand is based on what the middlemen (i.e. toy stores) want, not the actual customers, and the toy stores wanted pink ones so we didn't have much choice"

This is Hasbro's thought process, and it does work for their target market so i can understand it.
I would never question a little girl's interests, but I'm also not going to buy such inaccurate toys.
I think Hasbro will eventually catch on and update the models, and on that day my wallet will be ready.