If it turns out that she has cheated, i.e. born a boy and had an operation then the fuss is justified
Actually, that's not cheating. If you've had an MTF operation and have been on hormones for > 2 years, you're allowed to compete in the women's section. The rules say so, for the very good reason that the hormones make your muscles go away. http://www.guardian.co.uk/commentisfree/2009/aug/21/semenya-gender-discrimination
Stupidity, like virtue, is its own reward.