I think it comes down to the processing system. If they have all the information available to them, they are able to fly through the process. But if they hit a road block, in my case my wife's NZ PCC, then they put the application to the side and move on to the next one. Even if they receive the information or document that halted their process previously, it's not like they begin working on it again. It remains off to the side until they remember or are reminded to look at it. My case again, my wife's NZ PCC was obtained on February 22 but they haven't looked at it yet.