Well, the comment "you cannot outrun a bad diet" is clearly referencing the bottom 95% of the population in this case, especially when followed by referencing "

Well, the comment "you cannot outrun a bad diet" is clearly referencing the bottom 95% of the population in this case, especially when followed by referencing "thirty minutes of jogging." Clearly exercise burns calories so it follows that there is some amount of exercise that will allow a person to "outrun a bad diet," so pointing out some edge case isn't helpful or instructive.