Where did you get the .2% figure?  In the first article it said their BMI obese, non obese by dxa was 3% of the male population and 0 for the women, leading to a total of 1% (due to population distribution).  In their conclusions they said that BMI's specificity(meaning if BMI says you are obese, you are) was 100% for women and 95% for men.  These are the same figures I've seen before from the CDC and NIH.  Meaning for males roughly 5% of the population could have an obese BMI and not be obese by body fat %.    I'm not trying to be combative, I just couldn't find the figure you quoted after reading your linked article.