I think we have a LONG way to go until that becomes a problem for tiny women. Most of the body acceptance movement is about health at every size, and it's a view that I certainly ascribe to. And to be fair, the sizing regulations aren't eliminating sizes 0-8, they are just using real women (and over 1000 of them) and 3-d imagery to make sure that sizes actually reflect the population.

People on the extremes of either spectrum are always going to have trouble seeing themselves represented in the media and finding clothes, but hopefully Spain's steps will chip away a little at the thin hegemony and the huge profit seeking industry behind it (or at least provide an alternative viewpoint).