We're smart - the disclaimers aren't necessary. If we weren't smart, they wouldn't help anyway.
I agree they've gotten carried away in their claims and are focusing the pitch on some silly stuff.. for ex I don't think they're going to solve world hunger. But these are criticisms of this particular pitch, and don't change at all the actual product they're pushing: a best effort implementation of medical science's actual nutrition guidelines + some nootropics.