I am quite understanding it actually, they prioritize study permit application because international students bring in $22 billion GDP to Canada and thousands of jobs(I think I read about this from some news articles, you can google it). You could argue that work permit people also brings/create GDP to Canada but that's not a guarantee GDP given there are more people job hunting than the amount of jobs now. But none of the less, that's their decision and we can just wait patiently. In my own opinion, I am appreciating they are still accepting pgwp application because there are much more people hunting jobs than the amount of jobs(I am speaking from the industry I will be working in only).