Personally, I believe the concern and outrage is warranted even if the death toll is indeed only (!) the 3,000 claimed by Iranian state media. That is the most conservative number so far and it is still an almost unimaginable number in such a short period of time.
bob678|15 days ago
When people imagine mass casualty events, they imagine something like Verdun or Hiroshima, where tens of thousands are killed within a relatively concentrated geographic radius. But more often than not, they actually occur across a wider area in numerous but smaller casualty increments which add up to something much bigger. And when considering how deadly even a single well-positioned gunman with an automatic rifle can be against a crowd of unarmed and tightly packed civilians, it's really not surprising to see how easily casualties could have mounted, especially when you multiple that over 400+ cities.