It’s a nice piece and makes a rather solid point: that it is not necessary to be aggressive, dishonest, manipulative, or generally unpleasant in order to have sex with anyone. This should, to my mind, be advice on par with “You don’t have to write your homework in gopher blood, you can use a pen” but apparently a lot of people still need to hear it.
Why do you suppose that is? Why do so many people take for granted that the only way to make any kind of personal sexual connection is to be, essentially, a lousy person? What about that notion makes it so persistent?