I am completely in agreement with you on this statement.
Unfortunately, the NHS actively discourages T2s from testing, and encourages them to eat lots of 'whole grains' and adopt a lower GI way of eating. With every meal.
When I was given a diet guidance sheet it told me to eat 9 portions of brown carbs a day, where a slice of brown bread was 1 portion.
9!!!
Without a glucometer, and sensible education on what those portion sizes should be, and a basic training on carb counting and how blood glucose works, the average T2 patient is just heading towards increasing HbA1cs, increased medications and eventual insulin. Lambs to the slaughter.
Add to that, my experience of low GI eating was basically that it didn't matter if I restricted my serving to a single tablespoon of wild rice, it was still too much for my body.
Thank heavens for self funded self testing, is all I can say!