I have been diagnosed with Type 2 Diabetes for 10 years, and I have only just completed the Xpert course. I found the explanations of the food labeling was good, and this has enabled me to make better decisions while shopping. We were advised to lower our carbohydrate intake, as this stored creates glucose. From my experience the NHS suggests "everything in MODERATION" but what is moderation? If you look on the internet there are Diabetic Diet Books available at a price, and containing recipes with ingredients that most of us would not buy and cannot afford.
I fully believe that these courses are delivered with good intent, but I also think that they cover ground that we already know about, and their content could be changed to include other ways of controlling blood glucose levels. In trying to control our blood glucose levels, we are not told that the climate temperatures and conditions will have some description of an affect , or that stress, a virus or any other illness will also be detrimental to us, this includes people diagnosed with Type 1 Diabetes, and is probably more relevant to those whose medication is insulin.
I also feel that any handouts, booklets, etc that these courses hand out to us are a benefit. We might just shove them away in a drawer, but at some later date we vaguely remember that at least one of them contains information on something we need there and then, se we dig them out and find what we want and a few other things as well.
Don't refuse these courses because of someone elses enthusiasm or lack of it...ask to go on them and experience them for yourself...if everyone only comes away with one positive, it is something they did not have prior to doing the course, and it also means that you are discussing some things that bother you with other people, who will be happy to say what is working for them, which in turn sows a seed for thought.