I am of the opinion that such a question doesn't fit the Q&A format. From reading the FAQ, I thought it qualified as a chatty, open-ended question. Based on the answers in the question, it was certainly subjective and solicited debate, which is precisely the close reason in this test. I just don't understand why it was invalid to think it should remain closed and not reopened.
Perhaps this is a boundary case because the asker and answerers all have very high rep, or there isn't good coverage of the topic elsewhere on the internet, but I think it's brutal to be used as an review audit.