I really do wonder how many of those "fat but fit" people in the study exercised on a regular basis? If you're sedentary and overweight, of course you're going to be at a much higher risk of heart disease. But what about people who really are active (and I mean more than just walking around the block once in a while) but still a bit overweight?
At any rate, this study has to be bad news for the HAES people. They seem to believe that a person can be healthy even when morbidly obese.