As a dedicated servant of Islam, you found her apostasy offensive and used that apostasy to reject her humanist message. Rather than supporting the liberal value of freedom of belief, you maligned her for using her own free will to escape the oppressive system into which she was born.
When you malign people for leaving Islam, the inescapable conclusion is that your views towards Islamic apostasy align with Islamists. Otherwise, you would not have used her apostasy as the reason for rejecting her humanist message.
Coyote didn't malign her. Just stated that she seems more intent on bashing Islam than being an honest voice about it.
Again, I think what makes her dishonest in my view is that she blames her FGM on "Islam", when no teaching of Islam calls for it, and the practice predates Christianity and Islam in that culture. But of course, since most of us find FGM horrifying, she uses a bad practice to slander a religion that she has issues with.