Being the devil's advocate, doesn't the fact he needed to fit spacers to make them look perfect suggest they do need a 'rework'. ie need to fit a spacer to the rear to match the front, or need to increase the front offset to match the rear?
It's all a matter of taste but I think the rear is better without the spacer, but the front pokes too much, so the pair doesn't look balanced.
Also as a company I would have thought it will be more profitable to sell wheels that match all transporters rather than ones that wont fit on low vans?