You seem to have confused promoting positive health decisions among obese individuals notwithstanding the amount of food they consume, and the acceptance of obesity as a healthy condition in itself. However much some have misinterpreted "Healthy at Every Size," the former is its organizing principle.

We agree though I'd phrase it as, acceptance being the most important part. The individual accepting their status/issue/persona and not society acquiescing. It's all very specific and personal.