But visually it's a disaster.... you come in and look at the pipes to the right of the washing machine. That's terrible.
Was the position agreed upon?
I would also prefer the interior wall over the exterior wall.
I also don't think there is anything visually wrong with it.
You are talking about usable space here. Keep a low profile.
Better invest your energy in the "more serious" inconsistencies you report here.
This point only deserves attention if a different position was explicitly agreed upon. Then it can be an opinion amplifier at the right moment. But I wouldn't complain about it. As I said, unless there was an agreement.