Dunno what the manufacturers are thinking, if they want food to be more diabetic friendly, then they should change the sugar on the traffic light colours/symbols to Carbohydrate since they are both the same whether you're diabetic or not, both provide energy, just one is faster acting than the other. Parents of children often think of sugar as an enemy and carbohydrate as a necessity in their childrens diet. You pretty much get the same carbs in a large milkshake at McDonalds as one portion of large fries, where milkshake would be sugar, fries would be carbohydrates.
I'm no scientist but they both act the same, however when there is a 3:2 ratio for milkshake as an example where 3 represents the overall carbohydate content and 2 would be sugar, sometimes all the carbs are sugar in milkshakes, there can't be more sugar than carbohydrate as they are the same other than the fact I stated above that one acts faster than the other, all i'm saying is carbohydrate on the labelling is much more important to diabetics than people without rather than having just sugars.
If you have access to their website, just plan what you are gonna have, and inject your insulin with whatever amount according to how much carbs you are going to have.