It does look like Fella is addressing psychological issues which I think are huge. The issue if you deny that calories in v calories burnt is the essential metric is you end up with the problem with bariatric surgery where people literally eat to the point of severe pain and don't lose weight. It's why responsible surgeon always require significant calorie restriction weight loss before surgery.
I'm sorry this isn't clearer. The core part of the coaching program is focused on psychology: we even call it "psychological coaching" internally! That's the stress eating side, then also diving deeper into why we make the food choices & portion size choices we do.
My take: a approach focused only on changing behavior has good parts, but traditionally been way too much reliance on this and not enough on the psychological/cognitive side.
