I'm curious about your impressions of the test after having some time to reflect on it (and after getting some good input from this forum).
I have been to several dan exams - Karate & Aikido. Nobody does everything perfectly, however I have never seen anything approaching a lack of discipline.
The most interesting test that I have seen was a young guy - probably around 18 - who injured his shoulder or arm early into the testing. This particular style did not have marathon tests, btw. He completed the test and gave an excellent technical performance despite being in quite a bit of pain at a couple different points.