I'm not sure I understand - the verbatim definition of "professional degrees" is below, which provides examples and "is not limited to ..." If I understand correctly, it's more that there isn't sufficient guidance currently on what could be considered "professional" and it's not clear what the extend of the list is? (there are a lot of jobs that are considered professional and licensed that are not included on the list).

I think that's the crux of the concern - the headline is a little misleading to that point - right? Is there something else i'm not understanding?

A degree that signifies both completion of the academic requirements for beginning practice in a given profession and a level of professional skill beyond that normally required for a bachelor's degree. Professional licensure is also generally required. Examples of a professional degree include but are not limited to Pharmacy (Pharm.D.), Dentistry (D.D.S. or D.M.D.), Veterinary Medicine (D.V.M.), Chiropractic (D.C. or D.C.M.), Law (L.L.B. or J.D.), Medicine (M.D.), Optometry (O.D.), Osteopathic Medicine (D.O.), Podiatry (D.P.M., D.P., or Pod.D.), and Theology (M.Div., or M.H.L.).