Earlier quoted context omitted.
Did you read the article? It was a real world practice, but long gone already at that time (in the mentioned parts of Europe at least).
I'll play's devil's advocate - is there really a difference? People were angry (rightfully so) at children chimney sweeps and they definitely existed, were abused and did die/have horrible problems/etc. So the outrage is justified. Now, the specific picture isn't true/authentic, but the contents of the picture definitely existed did. So is it wrong?
It’s like with the witch hunts which are associated with the middle ages but happened later.