Emotions haven't yet had time to cool. These folks 's gratitude for the events of that day will increase as the years go by, and they witness the life trajectory of those children who did survive. Talking here watching those tykes who didn't bite the bust grow up to be 8th grade metheads who rack up multiple felonies before they're eighteen. Or making it to community college, only to get knocked up by some loser who's already sired 15 other kids by a shitload of women, drop out of CC, and end up unable to support themselves or the child
In the not too distant future, the folks who are grumbling in the story in The OP will be saying to themselves: "Well, shit... We ultimately dodged a bullet, even if Bobby and Sally sure as hell didn't back in The 2020s"