I guess my lament is with wish that ultimately it would never be rational to perform a short GM draw -- i.e. there would be some short-term incentive they lose

I guess my lament is with wish that ultimately it would never be rational to perform a short GM draw -- i.e. there would be some short-term incentive they lose out on, and they would have long term reputation damage e.g. who wants to support a GM known for short boring draws? GMs resign at times, even when one might think there's a microscopic chance of the winning side making a mistake later. In some universes there could be American football leagues, say, where teams might resign in the 3rd quarter when they are behind far enough, and want to avoid injuries - but I don't think the concept exists now, no football team has ever voluntarily resigned before the end of the game.