Yes deceptive labeling occurs on very many products. Another example are fruit and vegetable products that contain labeling that say "no cholesterol". But only animal products contain cholesterol.
I also get a lot of people asking me if the fruit seeds i sell are GMO or not? Really most consumers think that all fruits and vegetables now are genetically manipulated, but the percentage is really quite low. The chemical giants are still mostly interested in altering the major crops, like corn, soybeans, rice, cotton, rape seed (canola), etc. They are slowly branching out into genetically modifying the major fruits and vegetables. I wouldn't be surprised if GMO citrus comes on the scene in just a few years.