I'm not so sure she's just seeing everything through the prism of her own culture. I bet there are many Saudi women who also secretly hate these rules and sexist norms. People are capable of extending their views on morality above what is "normally" done culturally, it's not as simple as saying they are two different cultures so both should be respected equally. Treating women as second class citizens is a bad idea in her opinion (and mine) and if she wants to make a stand against that then more power to her.