In the application process, applications are presented to the Government of Canada. Depending on the nature of the activity that they're requesting an authorization for, it would be deferred to Global Affairs in the first instance, or to IRCC if it is about safe passage.
The reason is that Global Affairs and IRCC are better able to assess the preparedness of the organization and the validity of the application. It's entirely separate from the assessment that Public Safety will lead on, which has to do with national security.
It's a question of using the right tools within the Government of Canada's tool box to respond to the request that's being made by the entity in question. Hopefully, we can provide that answer very quickly for organizations that we know very well.