Can I add that surely if a defender blocks a goal with his hand, should that mean there should be a ban for the player, or the game should be replayed? No it doesn't. If the ref sees it then it's a yellow/red card depending on the situation and a penalty and nothing further. If the ref saw this it would have been a yellow/red card and a free kick. But the ref didn't see it, just as some refs don't see defenders handballing it to stop a goal and in the later situation nothing happens after the game so nothing should happen in this case either.