Not if along with the end of the evacuation Federation fleet, the worlds they were to be evacuated to closed off too. Patrick Stewart wanted his show to be a mirror of the refugee crisis. If the Federation decided "Since the fleet is closed off, why should these worlds or our worlds still be open to Romulans, our enemy?"
If the Fed also blocked worlds for Romulus to evacuate to, they couldn't evacuate millions because there would be no place to put those millions.
Romulan space is vast. I doubt the Federation would block the Romulans from evacuting to planets within Romulan held space that is away from the danger zone. That would be interfering with another culture's internal affairs.
Last edited: