Being in shape no longer cool

I read this article today online about pot-bellies being "hip." I don't understand the article at all. At one point the author says that a flat stomach is "passé." How is that even possible?
Big sunglasses, off-kilter hats, skin-tight pants, etc. all these things I can understand. I don't understand how a pot-belly is stylish.
And the author refers to the look as the Ralph Kramden. Ralph Kramden, if you're not familiar, was Jackie Gleason's character on The Honeymooners. He did not have a pot-belly; He was a very fat man.