I actually have been using those the whole time. My wife on the other hand believes that things like those as well as real cream and anything not labeled as light is bad for you and I have spent a lot of time retraining her with that. The worst was when she bought some light sour cream which is about the most vile thing I have eaten lately, filled with all sorts of fillers, binders, and texture modifiers all so that you can make something that approximates real sour cream from skim milk.
I have become amazed at the amount ingredients in processed food that are there because it is needed to make it cheaper or to get the flavor or texture right when if you cook similar food it turns out better with less. For example when I make chicken and bean quesadillas (something I saw at the store and my oldest got a free sample of and liked) I brown some chicken, add in black beans, tomatoes and let that cook down for a bit. then I add in some salt, corn starch, black pepper, garlic powder, onion powder, and chile powder to get the seasoning and consistency right. Then put a tortilla in a fry pan with a little oil, put in some cheese, the filling I made, some more cheese and then let it cook for 2-3 minutes per side on low heat. Yet the ingredient list on the prepackaged frozen ones is about as long as this entire post.