Originally Posted by
Adamas102
Alright, let's play with some numbers here.
Trying to keep things simple, lets say Arthas and his men killed 12,500 civilians during their purge (half the population that was noted in the RPG, the other half Mal'Ganis collected into his army). It might take a team of 5 men 5 minutes to get to and enter a home and find and murder a family of 5 then set their house on fire. VERY rough estimate but I think it's pretty generous. This isn't something they were trained for, and there was likely a lot of hesitation early on (according to lore there were also at least a few desertions). So that team could kill 60 people in an hour if they're super efficient about it. If the whole thing took two hours, then Arthas would have needed a force of about 520 soldiers. If he had fewer soldiers then he had more time to kill that many people.
If instead you split those soldiers in two sets of groups, one for evacuation and extermination of undead within the city and one for sequestering and managing people outside the city, that leaves 260 soldiers for the latter job (not factoring in the Silver Hand paladins that would have stayed for simplicity's sake). A team of 4 soldiers can watch over a group of at least 25 people, having them sit in the grass in 5x5 configuration, ready to cut down any that turn. So that's 1,625 people that could be quarantined and watched over at a time outside the city.
As the group outside the walls grows, and the situation within the walls becomes less tenable, more of the evacuation and extermination group shifts to quarantine and manage outside the city. Given two hours (or more), it would certainly be possible to evacuate at least a couple thousand civilians.
It's not perfect, it doesn't ensure everyone's survival. It's dark, it's grim, there would certainly be some panic (something that happened during the purge anyway) but IT'S A PLAN. One that doesn't involve widespread slaughter of innocent civilians. Even if only a fraction of those evacuated and quarantined survive, that's still potentially hundreds of people. If your response to making an effort to only save a few hundred is "nah, too much work, better to kill them all instead" that's just laughably evil.