It doesn't need to be such a point of contention and resentment, though -- the author of the article writes as if sex is a begrudging gift, and that the way she happens to view sex is the way we men need to learn to see it. In short: emotionally she's about 11 years old.
Agreed, the author isn't sexually mature. I think I was more sexually mature when I was 13 than the author appears to be.
Sex is a partnership. It's (generally) two people and (generally) one bed. If your sex life isn't to people participating, it isn't sex. The author sounds like she's a 'lays down and take it' kind of 'lover', which gives me the shudders.
Sex is a lot of things, but non-participating in it is IMHO akin to trying to be raped. It's nonsensical, and it IMHO sounds like non-consensual sex. I clearly don't comprehend it, but perhaps that's because when I wasn't even sexually developed I was aware of what sex was supposed to be.