I don't think Androgyny is about looking gender-neutral or "fooling people" into assuming you're another gender. I think it's more about just dressing like the opposite sex. The women who pull off the androgynous look successfully are the ones who are too feminine, because they are clearly dressed as men but their femininity shines through, which is what makes it appealing. If you look at OPs link, the cool androgynous women are fantastic because you can easily tell they are women. That's what completes the look.