How will such an auto split button work? You mean units will no longer listen to player and disperse? At least give some sensible example. That example of auto split makes no sense.
Auto-Queue is a QoL feature that exists in modern RTS. How strange that you don’t want to modernize the game? Auto-farm was intended to help in the same way. These features didn’t involve the AI to automate the game. Unnecessary multitasking is never desirable in a modern RTS.