That's my point, that for it to make sense they either need to be restricted to acting like humans or the rules of the game need to be updated to suit robots in

That's my point, that for it to make sense they either need to be restricted to acting like humans or the rules of the game need to be updated to suit robots in which case it's not the same sport any more, even if the rules are changed to keep it as close to human football as possible as you suggest.