I refer you to my nutrition thread 
His first comment mentions law of thermodynamics but that you cannot know accurately what you put in/take out. yep. This isnt really that controversial at all . He does pump LCHF a bit but with caveats and what he actually is saying dont eat refined carbs.
Most people need to worry about the 95% of habits that need changing. The rest isnt worth looking at. much like tri training, everyone is too concerned about hitting intervals to the second when as most of us know, as long as you get some hard, some easy and some at goal pace you will be in the right ball park.