I don't think anyone thinks that she's a poor woman. People think that Aguero was inappropriate. There's a difference there.
As I said before, it ultimately comes down to whether we look past someone's gender when they're in a role, and a role usually occupied by men. Paul Ince calling a fourth official a "fcking cnt" and telling him he's going to batter him is inappropriate at all times. It's more inappropriate when it's a woman. You can't say, in that instance, "ach, men get that all the time in football, it's fine." The (and I'm loathe to use the word, outrage, here, because the reaction to a minor reaction in a first place has been much more vociferous) response to this perhaps exists in the first place because, the low number of female officials notwithstanding, perhaps most footballers just know not to do this?