“Low Carb” or “Keto” isn’t a destination they are just methods of transportation as it were, what the issue here is, what is proven to reverse type II Diabetes is shedding the excess fat, and calorie restriction (in one form or another) is the only way to do that.
I managed to lose 60 pounds just over 2 years ago (and keeping it off) and I didn’t (and don’t) particularly pay much attention to carbs. I’m not Diabetic but I don’t want to push my luck. In the vast majority of people, Obesity or being fat is a choice. I’m not going back again, I’m not going to be obese, or even overweight again. But I’m realistic, there is room for some carbohydrate within a reduced calorie intake.
Within the realm of “healthy eating” (defined as a sane number of daily calories based on exertion) I can choose to eat more filling or substantial meals with a good mix of protein or fat, or I can choose high carb foods. My body never fails to inform me this was a poor choice. Over time people will naturally gravitate towards better nutrient mixes if they are serious about losing fat and keeping it off.
In general I agree that everything is being dumbed down across the board, to enable failure or excuse it, to enshrine mediocrity for various reasons, none of them particularly good. “It’s too hard!” is not a prescription for success in any endeavor.
The ADA’s “high carb diet” was not reversing anyone. It kept blood sugar and insulin levels high, being reduced by increasing amounts of drugs until the person ate themselves to death from bodily dysfunction.