I don't understand your assertion. Neither game developers nor artists are in any danger of being automated by AI.
Until Copilot can make the game you want, you cannot replace developers. And until you think AI is ready to replace artists in general, you won't be able to automate game artists.
That's not to say a game with assets largely drawn by AI, and heavily assisted by Copilot, wouldn't be a cool artistic experiment!
assets seem quite possibly ai generatable in the near future. you won't be using AI for the important things yet, but a AA or AAA game has a ton of random assets where for random crap that doesn't matter, but that you need to make the world feel full. that seems like a perfect use of AI assets.
Until Copilot can make the game you want, you cannot replace developers. And until you think AI is ready to replace artists in general, you won't be able to automate game artists.
That's not to say a game with assets largely drawn by AI, and heavily assisted by Copilot, wouldn't be a cool artistic experiment!