In the few moments I was skimming it earlier, I had about three or four really negative thoughts about my own body, because although I am really trying not to think that way, unfortunately I still sometimes do. And the way the article is presented seems designed to make anyone with a bit of body insecurity, in spite of themselves, think "I know what she means, I hate my breasts/belly/whatever too". Which the Sun would probably say is a good thing because it means it's relatable, right? 
And for a lot of people, even though we don't want to identify with it and actively try not to let it do its nasty work on us, we will feel that sense of recognition/nodding along as an almost automatic response before we pull ourselves up and remind ourselves that it's bullshit. Even thinking it for a fleeting second is no fun. I wish I was strong enough to ward this reaction off. I intend to get there one of these days.
So reading the article = feeling like shit for lots of women; more so for someone who isn't sort of braced for it by clicking through from the MN feminism boards, but is just idly flicking through the paper.
Also: it's pathetic and annoying, but at the same time kind of a handy confirmation of our assessment of this crap, that they couldn't even be bothered to think up a token justification for it.