Yeah I've shopped for clothes enough for my wife to know that even with an hourglass shape, you're guaranteed to find lots of pieces that're like "OK none of these sizes will work on you". Her particular problem is a small waist paired with an hourglass. Plenty of "ruler"-shaped cuts out there on the small end of waist size, that won't work for her.

I wouldn't be surprised if women of every body shape believe that clothes must be targeting some other shape, except the ones who luck into a sizing-region in which multiple body types have a lot of overlap.