The only thing these guys lack is noting that fact that in a keto state you are eating perhaps as much as 50% of calories from fat, or higher. Fat is one of the few things that both has no insulin response and also delays the insulin secretion in response to protein, specifically.
The guy in the weightology link just dismisses this type of diet as unsustainable (uses olive oil as his example).
He needs to explain a little better using his hypothesis how one cuts so much fat in keto state and set aside insulin parameters. He goes to the Type1 Diabetic well a lot, but most people now point to a keto diet as a "cure" for that state. It's a hole and he dodges it.
I would also like him to address the GMOD (Gallon of milk a day) crowd.
Krieger doesn't dismiss low carb dieting. He advises it for those too obese to exercise vigorously. He cheered me on a few years ago when I was ketogenic. And gave me excellent advice on transitioning as I became light enough to increase the workouts. He is a thermogenicsguy first though. The olive oil example is just one comment. He is pointing out correctly, I think, how easy it is to generate an energy surplus with high fat dieting.
He has discussed gomad (subscriber content), but the gist of that is briefly covered in the link (comments).
I think you’ve hit on the concept of energy density here. Many high-fat dairy products (like whole milk and cheese) are extremely energy dense. On top of that, you’re dealing with liquid calories versus solid calories in terms of the full-fat milk, which will not be as satiating. So in this sense, I would agree that dairy can promote weight gain. Myself, I use low fat and non-fat dairy products so this tends not to be an issue for me.
Dairy promoting weight loss in the research he cites is always non fat. I am moving in that direction noticing every time I use full fat milk I put on some weight. Cheese will never be a non fat food for me, but I have no problem with milk and yogurt.
Since this crowd is part paleo/low carb my comments may not be well received but it is calories in the end and maintenance is a ##### with full fat dairy. I've also nixed pork for almost 2 months and feeling good about it.