I very much suspect that it's deemed 'suitable for diabetics' because they are giving you a carb count per serving... which a diabetic can use to carb count!
So it would depend how a diabetic count there carbs?
As at at any level of carbs a diabetic choices. They have another choice as well, as to what type of carbs they choose to comsume...
Take me for example, my level of carbs intake is considered to be low carb but thats because I'm not a big eater, so I do comsume all the different types of carbs, including potatoes, rice and bread etc...
Others who have simialr intake or slightly higher do so, by avoiding foods that I do not avoid..