If you read through that casting thread, you'll see that a debate started regarding whether the model was too "young looking". While it wasn't resolved either way, the thread was closed six days after it was posted. If I had to guess, I would think that because the models pictures courted such controversy, that they would choose not to cast her. That same controversy could be reflected in sales. The best bet is a sure one, after all. Makes sense from a business perspective.
Not an official statement, just my speculation. On the other hand, I agree I would love to have some cards of hers as well. I'm still hoping and waiting that Mia Solis will have some cards coming down the line, she hasn't shown in the makeup thread so far.