Well, not necessarily true. Many applicants learn that CIC are very unpredictable, myself included. I received basically the same request as the one you referred to, except they requested PPR noting interview waived etc. Naturally I assumed that this was the final stage and COPR would follow within a month or so. I heard nothing for 3 months and made enquiries by email. Eventually they replied to advise that my application had been sent to LA for finalizing. I ordered the GCMS notes but couldn't find any reason why this happened. Was it administration error, or random audit review or a grouchy visa officer happy to make our lives miserable, who can say. Unfortunately the decision has added an extra 8 months wait time or more to the completion of processing.