There shall be no liability for a cemetery organization, a business operating a crematory or columbarium or both, a funeral director or an embalmer, or a funeral establishment that carries out the written directions of a decedent or the directions of any person who represents that the person is entitled to control the disposition of the decedent’s remains. Nothing herein shall be intended or construed to reduce or eliminate liability for the gross negligence or willful acts of any cemetery organization, business operating a crematory or columbarium or both, funeral director or embalmer, or funeral establishment.