I understand but at least Humble know of this issue before the build has started. I do agree with you and if I had to change my selections during the build I would go ballistic. I think when you get attached to an idea or an image in your head its sometimes hard to let go. Especially going through the gruelling process of working out external colours. I found it extremely challenging and time consuming, would hate to do it again.
But what can you do? PD is not in the business of manufacturing bricks..... You just have to move on.