The only product that matters to a customer is one that exists, and if this approach saves you money, lets you prove product market fit, or allows the product to keep existing longer - isn't that more important than the fact the Pi has more parts than you need?

What if the jet ride cost 25% less than the drive? What if they're only using the jet to prove demand exists on the route? Optimization only makes sense in the face of scale, but you need to get to the scale first.