I really doubt that Dr. Grandin would say that, assuming she actually reviewed the details of this case. If Barrett lied, I hope she’ll be prosecuted for perjury.
Dr. Grandin’s position has consistently been in favor of alternative driving aids (painless aids that cause minimal stress) , better training in the careful use of driving aids, directions on the appropriate voltage to use *if electric prods are the only driving aid available “If an electric prod causes an animal to squeal or bellow it is causing stress! Animals that vocalize are stressed animals.” If she wants prone, screaming horses to be shocked in the genitals that will be a complete 180.