BUT, you say, look at his gut. A fat slob, obviously. Can’t be healthy. Healthy is slim. I am 5’8” and weigh 225. At 5’8”, “normal” is considered to be – incredibly enough – 125-163 pounds. Overweight is 164-196, and I am “obese” at 225. In reality, my bodyfat percentage is about 24%, and a 60-year-old guy who deadlifts 500 is an anomaly in terms of muscle mass anyway. So I’m not worried about my body composition. [1]
Mark Rippetoe argues you should build strength to be healthy, not obsess about bodyfat% for health. If you want to look good, then by all means you should try to reduce your body fat. If you want to feel good, focus on strength.
This guy is certainly strong, but he is definitely overweight. He may feel fit, but his weight will make him high risk for heart attack, stroke, or diabetes.
There's no amount of training that can fix a bad diet.
His philosophy is that Strength is Everything, so cutting weight or limiting calorie intake for "lean gains" limits the muscle mass (and strength) you could be gaining.
It's certainly valid for him to value strength above everthing else. But most of us don't, most are more interested in longevity and quality of life during those years. And so it raises the question if his lifestyle is good in those aspects or not.