> Human moves tend to fit a narrative and be explainable, although often for very concrete reasons.

I'm not a Go player, but could it not be that if the AI played its moved in a more human order you could see what was going on and assign a narrative to the moves, but the AI can see the order of the moves doesn't matter sometimes so it seems to play more vaguely/randomly to observers? For example, say the AI played a set of moves at the top of the board that you could give an attacking narrative to and then it plays a set of moves at the bottom of the board that you could give an defensive narrative to. If you intermixed the move order for both narratives you, it seems like the AI is playing in a nonhuman way when really its moves have a narrative but humans are too fixated on the move ordering.