It gets you high and if a brother wants to stay legitimate with his personal life then why are we banning it? Oh of course because the DEA doesn't want ANYONE to get high without them knowing or allowing the use of "aroma therapy herbal incense". Nearly every bag has clear warnings "not intended for human consumption"
On the other hand, it's a chemical that's yet to be researched as the side effects and any potential withdrawal symptoms have had no research nor documentation. It has a potential to be abused and has relatively easy means to acquire.