Yes. I'm not sure how a blanket extension process would work. I think that could be a little bit troublesome. Having worked with IRCC, I think a realistic approach would be for individuals to make an application. However, the post-grad work permit application process has been fairly straightforward. The number of documents required is not large. They need just a completion letter and their transcripts.
If an individual already has a post-grad work permit, those criteria have already been assessed, so I think for post-grad work permit-holders, making a new application would be quite simple as long as the criteria allowing them to do so were announced.
Similarly to the situation for spouses, we recently announced that if they secured stage one approval, with the changes in the dual intent, it would be very easy for them. They just need to be given a mechanism by which they can submit this extension application.