Is the argument being made that the opinion of employed thespians should be respected, while their unemployed brethren should be given less respect?
No. It means I don't give a shit what people think who weren't involved in the production. It also means that an actors motives may be suspect we they evaluate a property that they are no longer collecting a paycheck from.
Because the people who were
involved in the making of the film will speak their honest opinion on it?
For example, I honestly do not believe that Simon Pegg would be so glowing about JJTrek if he were just a viewer. I can't know his mind, but I just don't buy it.