I watched the video and didn't see anything new. For starters, he blames obesity and related ailments on what someone eats and claims, remarkably, that to fix that we just need to eat better - go on diets, effectively. The problem is diets almost always fail. Every bit of data shows this - no matter the diet, after a year or two all the gains are reversed for the VAST majority of those trying them. And it cannot be because everyone going on a diet is a weakling, with no willpower, who we can blame because diets the data show almost never work don't work for them. If something fails maybe 90% of those who try it, maybe that something is the problem, not the person. We even know why - diets reduce base metabolism, so when you cut calories, your metabolism slows and you get on a cycle of having to cut ever more calories to lose weight, and as you do that, metabolism slows some more, requiring fewer calories, etc. So the person is hungry all the time. No wonder they fail. So suggesting cooking classes, as he did, as an answer to the problems of obesity and Type 2 diabetes is just nonsense. Yes, they might help a bit for a small number of people, but WHAT someone is eating appears to be at best only part of the problem.
Further, even if you could get individual A to change his diet, and lose weight, and exercise every day, and keep the weight off for years, for that to work at the level of the population would require a lot of food companies in the U.S. to go to zero, as we all ditch everything in about half the aisles of the grocery store, freezer section and restaurants to only eat veggies, lean protein and lots of olive oil. Well, those companies spend $billions each year to convince us NOT to do that but consume ever more of their offerings, in part subsidized by government that promotes corn and wheat and sugar, makes them cheaper to us, and also cheaper to those buying food for themselves and their families. When we went 'healthy' on our diet a few years ago, our grocery bill about doubled. Fresh veggies and berries and other healthy fruits aren't cheap, neither is lean protein. And not everyone can take the 2 hours per night it takes roughly to cook, eat, then clean up afterwards.
The best answer I've seen to obesity is some form of fasting - intermittent fasting effectively. When you don't eat anything, you don't spike blood sugar, and insulin doesn't spike and you don't have barriers to using your fat as fuel. But the point is that approach takes as a given that 'diets' fail, and promoting diets such as Atkins or low carb, etc. that just do not work are guaranteed to fail the vast majority of patients, and so offers a different and simple alternative. Whether that works long term is an open question, but what is simplistic and essentially worthless advice is to just say - eat better, and exercise. That's where the video is - promoting simplistic notions as solutions.