I hardly imagine that they share same responsibilities. This person might as well be a front desk officer responsible for answering phone calls and signing deliveries or an actual case adjudicator. We can only guess.
On the other end the actual size of the GC building is no secret and we can speculate about the number of public servants it can accommodate, bearing in mind that 1/3 of them perform technical tasks. Not a big deal, right?
However, it appears the limited number of human resources allocated to PR adjudication it is not what slows the processing. The true culprit is the ridiculously outdated framework that has remained the same for decades since Trudeau era. Look at Australia - everything is streamlined and processed online the same way that CIC manages TRV applications, they don't even require IELTS certificate scan as they have direct access to IDP database. There is also a special form for correcting your submitted application. And look at us printing mailing labels and worrying about the color of the pen's ink
It is high time they introduce EE, really.