So I have given many district assembly talks, and have experience in this area. It is one of the things that really upset me.
In consecutive years I had talks that needed real life experiences . Both times I knew exactly who would be perfect for the parts. They and their experiences perfectly fit the theme and the intent of the part (in my opinion).
I was shocked both times when the C.O. made them actually change their "true life experience"! He didn't like the details and thought it would be better if he modified what really happened.
The first time this happened it was with a sister who just meekly went along with it.
The second time it was a friend of mine, and though he did it (completely lifeless presentation - who can blame him) he was confused, hurt, and angry about it. I believe it has put big doubts in his mind since then.
These are not the only occasions I have witnessed. Having been giving assembly parts for years, I saw in rehearsals this happen to other people, or having "important" sections cut out (always so it looked like dogs hand was in the matter).
I was VERY VERY DISGUSTED! I was happy most of my parts were longer talks where I had control.