Part of it comes down to trying to do AI in a disembodied way. OK, so a team of engineers can specially train and tune an AI model to beat a human at Go. But the human player who was beaten by the computer is thinking about getting up to go to the bathroom while playing, and will drive home afterwards through rush hour traffic and make dinner. That is informed by that human player's GI model for the world.

Current AI models see the world as edges and vague boxes. It doesn't even have item persistence, let alone the ability to decide on, and make, dinner.