I agree, I think it's disadvantageous to equate gender equality with gender sameness. Perhaps this is due to my religious upbringing, but I always subscribed to the notion that the two major genders were developed over time to be complementary. It's only in our -- until very recently -- very androcentric society that difference from men came to be construed as being less valuable than men.
Moreover, it's true that "masculine" women and "feminine" men exist, but that does not make the generalization invalid.