I think there's a real difference between "a computer"— in this context meaning an algorithm written by a human, possibly calibrated with a small number of parameters but not trained in any meaningful sense, and a "chess model" which works as you describe.

I think the chess model would be successful at producing the desired outcome but it's not as interesting. There's something to be said for being able to write down in precise terms how to play imperfectly in a manner that feels like a single cohesive intelligence strategizing against you.