They could slap on a disclaimer saying 'Results for entertainment purposes only. This service has not been evaluated or approved by the FDA.' I'm no expert on regulatory law but I suspect this would immunize them from most oversight...but I also suspect it would have a deleterious effect on sales.
I think they would have to remove much of the product too. The FDA is involved because they consider the product to be "intended for use in the diagnosis of disease." I doubt they could say, "our data shows you have disease X but this is for entertainment purposes only."
