I agree with the points made in the article, however, I'd say the main issue here is that sex is not okay but horrific violence somehow is.
In general, parents would be happier letting young people of say, fourteen, see someone getting shot in a movie or game than letting them see two people having sex. This makes no sense. Surely introducing kids to the idea of hurting another person at quite a young age is bad, relative to introducing them to a way they can make another person *very* happy...
Isn't a desire to find out about sex perfectly healthy, or at least, much healthier than a desire to find out new and interesting ways to kill people?
However, games have dealt with the no-strings-attached versions of "fun" violence for years, and are very good at it, and this is the way they treat sex at the moment. Why should we expect games that treat violence with such a consequence-free attitude to be mature about sexual themes, just to seem more adult? If a game treated all themes with an adult attitude, such as violence, the consequences of killing real people for example, then maybe we should expect "love" rather than sex. It has to come from the RPG world with games like Mass Effect.
Personally though, aside from the genuine feelings I had towards the brilliantly characterised Alyx Vance, ahem, I've no interest in realistic depictions of sex in games, I play games to do things I *can't* do in real life.
My main beef is, if Saw V was in the cinema, *most* types of porn should be too, as they're not so bad, and don't make me feel sick...