In every era, the subjects tackled in academic debate are neither random nor comprehensive. They follow the interests and anxieties of the times. So it's not surprising to find that medieval writers applied their analytic and debating skills to a slightly different set of questions that the classical authors whose work they leaned on. One of the aspects that Cadden emphasizes (and that Laqueur downplayed) was the diverse and contradictory nature of medieval arguments and conclusions around sex.