Imagine a person in the world of Pokémon. . . with a crippling irrational fear of Pokémon. Even the cute ones like Alcremie and Pichu will send them into a panic. (I feel like this would be me tbh)
I don’t think you can be terrified of every single Pokemon in the Pokemon world, since they are literally everywhere, used for anything. Not only as pets but to help in the household etc. If anything, the person might be scared of a specific type like fire Pokemon. Misty for example got squeamish around insect Pokemon in the first season.
I might have dreamed that episode, but wasn’t there someone who was super afraid of dog Pokemon, too? But after it saved them they realised that they aren’t that bad.