Yup. That is the truth from what I have researched myself as well. DoTerra or whatever it's called trademarked some terms for labeling purposes basically. If you do the reading on essential oils, the terms they use are not even existent in the essential oil world. There is no, "Medical grade" essential oil. That terminology is a made up thing in an attempt to try to make their product stand out from the rest. The reality is that they are no purer, cleaner than the other companies.
For that reason alone, I would steer away from supporting their products.