@DJS - what is your visceral fat percentage?
The primary conclusion of the study you mention is:
Their results showed that regardless of the person’s BMI , an unhealthy metabolic state — such as having hypertension, diabetes or high cholesterol levels — was consistently linked to an increased risk of dying during the study period or having a heart event. http://healthland.time.com/2013/12/02/you-cant-be-fit-and-fat/
I agree with you that the ideal state is to be thin and healthy. I am not arguing a get out of jail free for overweight and obese people. Rather my point is that metabolic health is more important than BMI.
Lustig's message is:
1 - don't let being thin fool you as to your metabolic health - see the primary conclusion noted above
2 - your biochemistry drives your behaviours including eating and activity levels. Obesity is not the problem, rather a symptom of biochemical issues. You may be suffering from these biochemical problems and still be thin, for the time being.
3 - our fructose intake in the modern processed diet is driving our insulin levels crazy