We are our own best advocates. If it seems wrong, then it probably is.
I have been on a KETO diet for years. It was the only way to keep my sugars under control.
I have been a diabetic for 24 years and ONLY a year ago I have been diagnosed as a 1.5 diabetic (LADA).
So any amount of carbs spiked my sugars.
I think that diet may work for some people, but we are all not all the same stage/or type of diabetes.