Luke was working from the perspective of a man trying to improve his social skills in order to be contributing more equally to a potential relationship. The implication was not that women do not also need social skills, rather, for him to attract the attention of a woman (who has already caught his attention, presumably, with her social skills, body language, pheromones etc.,) he must have better social skills.

From personal experience, I feel that most of the pronouns in that paragraph could easily be reversed. There are women with poor body language and poor social skills; if anything, this essay proves that, because he's not thinking about how to attract those women.