Could it be... that Kasumi-chan is actually moronsexual? This airhead is just way too darn cute.

I really like that Ann's social link is so focused on strong women and how she aspires to be just as great. It really resonartes with Kasumi's backstory too. A national level gymnast had to work hard to get there and after being disgraced she still keep up her spirits. That would be an inspiration to Ann.
Airhead or not, she has no pettiness in her at all. I can't understand why people ever called her basic. I guess they just saw the bimbo and not the female empowerment angle... or didn't care to.