If you try to compare between different specific phthalates, which is how the European Union regulates their intake of these incidental additives (the US has no such recommendations), you'll find that the authors of the circulated report pulled a fast one. Instead of showing the concentration of each phthalate in the total product, they only presented data on the amount of each phthalate in the fat of all cheese products. There is no way to compare how much of each specific compound is present between boxed macaroni and cheese, string cheese, and other products evaluated by the study, so no actual determination can be made if these compounds are present in toxic levels or not.