I don't know the details around how the Canadian system works, but I want to say that there's something extremely arbitrary about who got out and who didn't.
As Dr. Samar said, many high-profile human rights activists are still trapped in the country. It's just because they decided not to go to the airport in late August, or they tried to go to the airport and they couldn't get into the airport. They thought, “Let me give it a bit of time and see what happens.” They thought, “I'm safer hiding in my house. I'll try to go in a few weeks.”
We now know that for many people, that was the only opportunity, and they missed it—