Great post (rich in quality with detailed explanation). I agree with most things you had written- especially your last sentence.The issuance of RQ and RQ-lite, that is CIT 0171 and CIT 0520, has been overtly fact-based, criteria-driven. No one has suggested otherwise.
There is a lot yet not known.
I would not have even posted in this thread, except I had to disagree with the thread title and Original post. I don't consider it as RQ mystery solved.