X-post Shadow, you're right that there is a lot of criticism, I don't mean it doesn't go on.
A friend of mine got comments from her NCT group that every cold her son got was down to her not breastfeeding, which she had really tried with but stopped because she was struggling with PND and it was just too much.
I've had parents I've never met before annoyed that I've given my toddler those Organix crisps in the park because now their kid wants one and isn't allowed because they're a 'bad habit'. I've had countless strangers tell me the sunshade of the buggy should be down, or up, or why doesn't she have a hat on (because she's just taken it off for the twentieth time and bending down to pick it up with horrible morning sickness makes me want to throw up so it's easier to just walk in the shade, argh!)
I just don't think it's something to glorify and Dove are using it to justify what may be criminal behaviour (telling a breastfeeding woman she's making customers uncomfortable in a cafe for example). I'm sure a lot of the time it's due to a lack of confidence, in my own rather dogmatic SIL's case this is true.
Advertising often aims straight for the insecurities, and this is much more true of products aimed at women, and it stinks.