I don't think it has anything to do with verifying presence in Canada. They just accept the declaration.
eCOPR issuance used to be quick in the summer, everyone got it in two weeks max, most within days. The reason for the slowdown is probably as they say: there's a high volume of files at the moment. They probably have thousands of eCOPRs to issue and they can only handle so much a day. Probably a lot of applications reach the approval stage at the same time towards the end of the year.
As for how the queue works and why some seemingly skip ahead, I have no idea.
eCOPR issuance used to be quick in the summer, everyone got it in two weeks max, most within days. The reason for the slowdown is probably as they say: there's a high volume of files at the moment. They probably have thousands of eCOPRs to issue and they can only handle so much a day. Probably a lot of applications reach the approval stage at the same time towards the end of the year.
As for how the queue works and why some seemingly skip ahead, I have no idea.