Why do you keep dragging in the “the kids weren’t paid”? Who cares? You mean if they were paid it would be okay or not okay? Payment has zero - nothing - zilch - to do with this.
Nothing.
If the children were paid there would be a breach of contract with the altered video.
The reason we know about this is the parents were complaining is my understanding of this. they sign a release, they get paid, they aren’t complaining. if it was the Hollywood AntiChristians doing it, they’re actors, and it’s a different story.