Not sure what is good about the test...
They showed that if you feed a diet to mice that makes them obese, and keep feeding half of them that way, and not the other half, they keep getting obese.
No claim at all can be made about glucose and insulin, since they mention it, because the lower carb of the two was still 445 grams per day. While that is better than the 610 of the other group I find it hard to believe they can come to the conclusion that they did which is that eating 60%+ carbs
normalizes insulin secretion, leading to improved glucose sensitivity
I haven't seen any studies that suggest a 60% carb diet helps blood glucose and insulin sensitivity.
They then discuss how great their national foods are compared to western foods.
That's all i care to look into it.