If, on the other hand, some of them went to heaven instead, a little pain is of no importance to them either!
What nobody has brought up yet though, is that sarin gas and other weaponized chemicals can injure as well as kill. The deaths are just the tip of the casualty iceberg. There are probably many people who will live the rest of their lives with lung injuries - and possibly pain. That is to say nothing of executions and reprisals for incompetence. I don’t envy third world military “scientists”.