I'm using a Pivot Grid and noticed now that you also don't repeat same values in the second column although the values in the first were different. For example the Pivot Gird in your Demo Workplace:
If there were the line United States - Hessen - New York instead of United States - New Jersey - New York, Hessen wouldn't be repeated and the field would be empty. From my point of view it's a bit misleading. It seems that the field is empty.