These things are sometimes hard to articulate if you dislike both sexism and prudery. And don't get me wrong, the former is obviously a far greater issue, but still. Especially in America nudity seems to always be associated with sex, and sexual themes are frowned upon far more than violence.
Funny anecdote from my time as a freelance illustrator for White Wolf's Exalted. They wanted an artwork of some beasmen preparing a human baby for food for a naked woman reclining on a divan, holding a heart (or perhaps a liver, I can't remember.) That was the description, that's what they wanted, I didn't invent this. So I drew the picture, containing the desired elements. They however asked me to tone down the nudity (which they had asked for) as the woman's crotch was (barely) visible. Baby eating was perfectly fine though!
Now nudity or sexual themes don't bother me. Granted, if done poorly, it will just seem tacky. Like the Avalanche Press covers. But thing's like Frazetta's art are of course just pure awesome. However, in this day and age, if such themes are depicted, there needs to be equality. The double standard of realistically armoured men and scantily clad women simply is not acceptable.
And of course such themes are not appropriate for every product. That should be obvious. I'm perfectly fine with the core D&D being pretty family friendly. But not everything needs or should be family friendly. There needs to be room for stuff like Exalted or Sword & Sorcery. And even in D&D Ravenloft must be allowed to do horror and people in Dark Sun to be scantily-clad pulp adventurers. Just make sure that there are also pictures of musclebound warrior ladies protecting silk-thong-wearing lads in distress!