The point seems fairly clear to me. arkis22 is pointing out that this author is making unfavorable generalizations about men, and stating that these generalizations are probably partly due to biology. Here, it is that women assign greater value to close friendships. Later, she states that:
"My experience confirms that teenage and college-age girls care more than boys do about solving real human problem (as opposed to competitive, self-oriented gain), forming close bonds with peers, and earning colleagues’ respect. I will not comment on whether this is caused by society or by biology; likely, it’s both and many factors in between."
This isn't wildly slanderous, but I think we can agree that caring more about real human problems is more admirable that pursuing "self-oriented" gain (or maybe not, randians might say self-oriented gain is the highest moral pursuit there is. I'd disagree, and I suspect the author here would as well).
So, we have that men pursue self-oriented gain, and women pursue solution to real world human problems, and this is partly due to biological differences between men and women.
Personally, I'm really not offended or bothered by this. She has every right to make this claim, and overall, I though it was a good essay.
I also think that arkis22 is interpreting these comments somewhat uncharitably. I don't need someone to go through a million footnotes and provisos and stating repeatedly that these are just averages. I am nearly certain that this writer would agree that some men care deeply about real human problems and relationships, and some women care more about self-oriented gain. I certainly don't think it improves the conversation when people get bogged down because they have to protect themselves against every possible uncharitable interpretation of an argument (she didn't say that arkis22 cares less about his friendships).
But we do live in a world where people who make comparable (perhaps less dramatic) claims about women face pretty serious censure.