Speak for yourself. I personally don't find supermodel-type skinny any more attractive than obesity (which is to say, not very). I do, however, find good tone and health to be physically very attractive. Even though she could have stood to gain 40 lbs from her previous weight, 40lbs of flab is just that. Flab.
And before murmurs of "double standard" erupt from the peanut gallery, I try to practice what I preach. I'm not a health or exercise nut but I do value being in good shape and I recognize that, at age 32, I actually have to take steps to stay that way. Nothing drastic beyond a decent diet and exercise, though. At last measurement, I was 6'2, 185 with 8% body fat. That was in October so it's probably closer to 9-10% now but still I don't consider myself to be a "fat ass American."