Being yonder overweight person who has, to date, since April, dropped 62 lbs , I certainly understand the mentality of these people. You haven't lived untill you've lived overweight. It's....an experience. I could expand but I find it doesn't suit me.
What's ironic is in a nation where something like 60% of us are overweight, there's a huge stigma against..the overweight. That makes no sense to me at all.
All that issue is (the one addressed in Ric's article) is, like you said, an excuse to keep from Getting Off One's Ass. Nothing more. Being Super Tub-O-Lard is, in addition to being aesthetically displeasing, absolute pure unbridled hell on your body, mind, and spirit.
I'd like to believe the current diet craze in this country is the realization that we'd better do something about it. Really, it's just a fad that will pass.
I, on the other hand, plan on living past 40.