While I have no particular knowledge of the case, the FDA checks that services are safe and effective. Basically that the company isn't selling proverbial snake

While I have no particular knowledge of the case, the FDA checks that services are safe and effective. Basically that the company isn't selling proverbial snake oil (or literal snake oil, I guess). Providing incorrect or misleading information could lead to people making health decisions with potentially serious consequences. If that information is wrong people could take unnecessary risks with their health.