This is a step in the right direction, though, isn't it? It's not about whether the AI mimicks a person's pauses and errors, but about whether the AI can keep track of two pencils or distinguish between the present and future.

An AI that in some way demonstrated what we might call basic common sense, together with computer-like levels of recall, would be tremendously useful for all sorts of things. And a Turing test like this would probably demonstrate it fine.