Pretty sure that family was Mennonite, so Amish-lite, not Evangelical. Not sure on their theology, but there was a similar reaction to a horrific killing where a gunman went into an Amish schoolhouse and murdered a bunch of kids. The way I remember it the Amish community just quietly demolished the schoolhouse, forgave the killer, and went about their lives. No public weeping or gnashing of teeth, though I'm sure there was grief. I'd interpret that more as incredibly deep spiritual and emotional maturity, not 'being an NPC'. In that instance there were also a bunch of retards who were raging because the families weren't taking to the soapbox which their children's death provided them to back some dumb political point of view, so some things never change. I don't think it's the families in either case that are NPCs.
It's also not just an American thing. I remember watching an interview with a Carthusian father in France, a man who basically lived in his cell studying scripture, went to mass, lived in an isolated monastery. He was blind and someone asked him why he thought that God blinded him, and he said that his blindness had brought him here, closer to God. The Catholic view that he had was more 'fancy' (Molinism) but it's the idea that God sees in each of us an endless refracting pattern of free choices which we could make, where each of them leads, and tries to nudge us down the path that brings us closest to God (basically metaphysical good), though we can always choose to step off it and turn away.
All Christianity believes that saints who were tortured to death were following that path - it happened to so many of the earliest Christians. It's a religion that tends to take awful things in stride, to put it lightly, as the founder of the religion was quite literally tortured to death. I've heard priests talk about their darkest moments in life (suicide attempts, deaths of loved ones, etc.) as 'being in the tomb' (referring to the three days when all the apostles thought that Christ was dead and were despairing), implying a very dark place before the restoration of hope. It may be a difficult mindset for non-Christians to understand but that makes it the very opposite of mindless conformity and lack of perspective that the NPC term is typically applied to describe.
