IIRC neither the CoG staff, nor any of the staffs at the publishing platforms goes through the entire game to see if it is suitable.
That task is up to testers.
You have several games up yourself. You know that ‘all’ you do is mark how much violence/swearing etc is in a game.
That’s what IIRC CoG and the platforms go by. (unless you have a game about the russian revolution, then google russia will check it and mark it as nc-17)