Well, dumb-ness is subjective. On one hand, it's hard to call someone like Richard Dawkins "dumb" in a broad sense, but as a man of science he knows what it means to study and research something before drawing conclusions... And you do not need to be a computer scientist to understand the basic principles of an LLM. In that sense, Richard Dawkins is displaying a side of him that is almost willfully dumb when he's waxing poetic about how "Claudia" is sentient.