When I was still attending assemblies/conventions, I noticed a change in vocabulary:
re-enactments
rather than
demonstrations
I asked the CO, what was the difference
"Reenactments of faithful servants observing the Memorial in the first-century congregation; in the late 1800’s; in a Nazi concentration camp; and in our day in a modest, open-sided Kingdom Hall in a South American country with a warm climate."
https://wol.jw.org/en/wol/d/r1/lp-e/2019245?q=reenactments&p=par
He said that the people in the re-enactment were not the original people in the account or even were a real family or situation.
For example: An example of a family bible study might be shown on stage; The father and mother might be married to each other, but the children were not their own children, in fact the parents might not even have children of their own. The children would have to be exemplary in the congregation, and fit the cast required for what was being shown as an example of how to conduct a family study. Evidently, there was no family group that was exemplary that fit the cast required by the WTS for the convention. So it was re-enacted.
Perhaps the example wasn't even one found in any congregation, just what an ideal situation could be.
But...except for the jws familiar with the background of the people in the re-enactment, other jws would think it was a real family showing how they handled their family bible study.
Why would I be surprised that the WTS devises re-enactments and takes photos and forgets to mention that this is just a staged situation.