I feel like 99 out of 100 times an identical product gets produced by a supplements company and no one notices. Somehow, this one seems to have really really interested (or really really pissed off) people.
One possible narrative is "blandness is a virtue". All the pictures are bland beige stuff in a plastic jug. The people drinking it look normal, not athletic or exceptionally pretty. Their expressions are neutral.
The 'water of food' is, I suppose, a compelling idea.