In addition to her awesome discussion about internalized -isms, I completely agree with her thoughts about not wanting to be represented by cheerleaders herself, or reminded that many people think that cheerleaders represent the ideal woman that many of us fall short from. And I hardly need another reminder in my life that women are valued for their attractiveness to men over any other attribute.
I also want to add that as a girl, I would have been horrified beyond belief by science cheerleaders. My thought process would have been "oh great, here is another place where I don't fit in." As a kid, I hated cheerleaders. I hated skirts, pink, glitter, and dancing. I already had issues with not wanting to "dress like a girl", play with barbies, or be bad at math. I LOVED science, but Cheerleaders for Science would have tainted my refuge from the world I already didn't fit properly in. Is it worth turning away non-stereotypical girls to attract the cheerleader types? Is the target audience for Cheerleaders for Science really little girls, given that the appearance that set all this off was at the National Science and Engineering Festival?
FWIW, my own child would probably love cheerleaders, but she already thinks science is cool even without all that. She mostly needs to NOT be discouraged, not to be enticed.