A reply I got from goth_iq on the Petite Power Livejournal group soon after I posted the question for January 2008:
My magazine would have sections of different model venues:
Petite all shapes
Average all shapes
Tall all shapes
With designer labels and places to find clothing for that patricular body type. Also interviews with the designers and their vision for their clothing line. Added tips and techniques to accentuate the woman and her body type along with accessories if they so choose...
I'd guess that most, if not all "regular people", that is, anyone who isn't an insider with the fashion industry would agree with her, but this is probably not the case with people who work in the industry, at least the majority. If the models in New York Fashion Week haven't changed all that much from the last few Fashion Weeks, then why would they accept "different sizes", especially on the runway?