I have no news, I sent in an Urgent request for my proof of citizenship. It arrived a week and half ago, and nothing has changed. The application is still in process. From what I've found for previous people who had urgent processing were normally completed within a week from the time the request was received.
So, this tells me using the reason of needing an SIN to seek employment and access benefits, does not work. Even though they clearly have it listed as a reason to request urgent processing.