I don't know about the previewer's priorities, but I do know that I never quite have understood why a picture, an image, of a naked woman, would give a mature rating? In that case, several of the world's most famous paintings would be considered for a 'mature' audience only. And there not, last time I checked.
I think the previewer was trying to commend cd project's attitude towards romance, and romance scenes in games, not just yell 'boobies'. As for the romance scenes, I like the screenshots of Triss? and Geralt a lot. Reminds of paitings of Renoir, Degas, Toulouse-Latrec and yes, Van Gogh.