I have six cats and I don't mind a good laugh at a cat's expense, but I don't like that spa video. The cat was terrified. I have washed many a cat by hand. They don't like it, but only rarely do they act like that. I think that machine was designed for dogs and I would never put a cat in it. I also wonder about the chemicals used to clean - do they hurt the eyes? If they don't use a chemical, then you are only rinsing the pet, which does not remove all of the dirt and oil accumulation. I know dogs have natural oils needed for skin and haircoat health. But, here in allergy central, they secrete more oils and get greasy and smelly, thus requiring weekly bathing many times.
Hand washing most cats is not that difficult, and when a cat comes in like the one in the second video, guess what? No bath! The cat is mad already and will be further traumatized when handled, plus it would send your staff to the hospital.