Remember, this isn’t a “lose weight” diet. It is a “keep at it for the rest of your freaking life” diet.
Compare 135 grams to the recommended healthy diet for everyone else by the Mayo clinic of 225 to 325 grams.
http://www.mayoclinic.com/health/healthy-diet/NU00200
I get it, but many folks with diabetes DO need to lose weight - that is part of their problem. 45 to 60 carbs at each meal could mean a lot of calories. We don’t need to argue this - you have your opinion and I have mine. I just found the diabetic suggested diet to “seem” a bit heavy on carbs.