I know this is true because Dr. Blaylock, listed in the article, did brain surgery on my brother-in-law several years ago. The problems that he had were directly associated with aspartame, MSG, etc. Dr. Blaylock had him completely clean out his refrigerator, pantry, cabinets and throw away anything linked to these additives. My brother-in-law has not had a problem since.
Besides, I think stevia is an all natural herb, so why would there be a "marketing ploy?" Why copy the coke company? They have been doing it for years!