May 2016 applicant
Decision made : oct 10,2018
Copr appointment :nov 23,2018
In my point of view In a pilot project of cic which is extended until oct 31,2018 They are changing the process in a convenient way check this link
https://www.canada.ca/en/immigration-refugees-citizenship/news/notices/validate-permanent-residence-within-canada-extended.html. I think those who who have decision made before oct 31 will receive the COPR appointment which is you need to go to local office to have final interview then after the interview visa stamping.
So i think they are trying to remove sending passport via canada post (inland applicant)