I don’t know if “evil” is the right word but “cowardly” or “underhanded” might be the one. I’ve had to bathe our cats before and I would gladly pay $5 or so for a machine like this to keep from getting scratched and bit. No matter what I did, it became a life or death struggle for them. I don’t think the “kitty spa” would be any worse.
BTW, a woman I work with has two cats and at least one of them showers with her regularly. Totally unafraid of water.