i went and looked at the link you attached
calorie wise, fat-wise, and sugar-wise it's ok. then I looked up the ingredients, and it includes: fructose and maltodextrin as two of the top 5 ingredients. Fructose is, of course, a sugar and came out as the second most used ingredient in the yogurt. Maltodextrin is also a sugar that is typically used in a lot of processed foods; it came out as 5th. active yogurt cultures came out as 8th, but that's to be expected because it's a frozen yogurt
well, i think integrating it INTO your eating habits is fine, but it's best to not revolve your diet around it either, despite it's low calorie content. (besides its also pretty low in protein and fiber) moderation, i guess!