Researchers usually check this kind of claim to avoid any come backs, but researchers don't always get it right so they add disclaimers to cover their backs.
Mis information is bad for any industry and this is where a strong industry Association can prove their worth. On the How Clean is Your House programme they advocated the use of saddle soap for cleaning leather furniture. Something that would have serious long term consequences.
Is the programme a consumer advice programme or fiction ?
Even in consumer advice programmes there are are lengthy disclaimers nowadays, but the CSI type quote should at least be challenged by a professional from the c/c industry.