I guess the way you filled your application is different than mine. As, my AIP letter doesn’t states that it will be processed along my dependants who are outside Canada.
It states:
“We are pleased to advise you that processing of your application has been completed. The Canada Immigration Centre in ETOBICOKE will contact you to arrange an appointment for the finalization of your permanent resident application.”
I also received an email from Etobicoke office on Monday regarding confirmation whether I’m inside the country or not, so that they can process accordingly.
Right after my confirmation to that email, I also received COPR today in my account which includes COPR number, date of issue & expiry. Plus, my GCKey account status has been updated too:
Final decision
“September 15, 2020 Your application was approved. Check your messages below for details.”
I’m assuming I will receive COPR attachment in a week then I will be able to Apply for my PR.
However, for my dependents, I have to send their application to London visa office within 60 days; so that, they can be processed separately.
There could be possibility that they’re referring to your dependents those are with you in Canada—not the ones outside. For outside dependents, they might be processed separately like mines.