There are tests to prove out ideas during the course of development, but then there are tests which would perhaps be more accurately called "demonstrations"; where you're not trying to find flaws and refine your designs, but rather prove that you're [insert thing-name you're proving here] actually works the way you are representing it to work.

I understood this test to be more in the demonstration category, where Boeing would/should have had very high confidence, but they needed to prove to NASA that their spacecraft worked as advertised. If that's true, it was almost more a test on how much NASA should trust the confidence of the Boeing team than it was a test engineering and manufacture.

If that wasn't the character of the test, then I apologize for the distraction.