About one-third of the way in the article: "Erythritol is also the largest ingredient by weight in many “natural” stevia and monk-fruit products, Hazen said. Because stevia and monkfruit are about 200 to 400 times sweeter than sugar, just a small amount is needed in any product. The bulk of the product is erythritol, which adds the sugar-like crystalline appearance and texture consumers expect."

That's still not stevia, it's stevia products -- because stevia is so potent it's usually mixed with other things to increase the volume and mass -- otherwise people would be either adding way too much or feel like the package was "empty"