To be fair, it was actually less than three weeks. I know the dates.
What you describe, in my opinion, does not make it a full auto under the hasselwander test. The Hasselwander test requires: "... capable of conversion to an automatic weapon in a relatively short period of time with relative ease." So, there are two parts: (1) conversion in a relatively short period of time and (2) conversion with relative ease.
The RCMP was able to convert it with available parts, and can achieve the conversion quickly. That is not sufficient. The RCMP firearms lab is a group of experts. They had the rifle for 21 days, studied it, determined how to make the conversion, and then tweaked the conversion to ensure it would be capable of being done quickly and with available parts. To my knowledge, NO ONE outside the RCMP firearms lab actually knows the manner of conversion. There were dozens of them already in civillian hands for over two years, and yet not one report that they were ever actually converted. No 'kits' for adapting them were available. This all stands in marked contrast to Hasselwander, where parts kits were sold openly and legally, and where the knowledge was widely available.
In my opinion, a conversion where the knowledge is exclusive to that of the RCMP firearms lab, or where a skilled gunsmith would be required to engineer such a conversion it fails the 'relative ease' part of the hasselwander test. The knowledge is not easily acquired. Therefore it is not capable with relative ease.