I guess the challenge is.... I believe what you're telling us about the department, and you're the lead department, but I'm worried that other departments may not have the capacity in an emergency situation to assist in an evacuation, and if IRCC isn't issuing the appropriate paperwork, then it doesn't matter what resources Global Affairs has: Nothing's going to happen.
There must be a way for the lead department to affect certain outcomes in emergencies through central agencies like the PCO so that we don't end up with other agencies and departments being the bottleneck, even though Global Affairs is properly resourced.