lol @mp, i have to admit the one time anyone has asked (to my face) when my non-existant baby was due i was indeed wearing a ws dress
i'll give it to you on the cut - it's quite often not right, usually their uniquely odd combination of waaay too much cleavage, nowhere near enough leg and an empire waist.
but you're wrong about the prints - perhaps they look a bit much en masse in a shop, but individually they're often spot-on, and certainly much more restrained than a lot of the gaudy stuff around elsewhere at the moment.
i don't see why women of 30s plus, and in particular women up to an 18 (since their sizes are generous), shouldn't be able to buy pretty, casual, age-appropriate stuff. currently floral dresses are ten a penny, but they haven't always been that easy to find, and not all of us want to graduate to "classics" or tailoring just yet and frankly have too much self respect for b***n
so frumpy? some yes, some no, you pick and choose. samey? absolutely, but it must sell or they wouldn't keep doing it.
am tempted to go try on the op's dress since i'm pearshaped and i reckon it would work for me