Yes it may be just semantics but that how crap like (as stated in original post) aromatherapy get started and millions of people get scammed. And odor or a smell does not do anything harmful of beneficial. Some less well equiped readers may make the connection: if there are harmful odors then there must be some beneficial ones thus aromatherapy is good. I read that on /..
If you are not careful a lot of beliefs can be (and have) started by extension of misused concepts and passed as truth. Call me a semantic nazi but next time you work on a set of requirements for a customer remember this discussion.