To a certain degree yes, but then again you have full access anyway. ( think utilidors, backstage areas) Backstage areas are the interesting things to see, as a guest this is off limits. As a CM you can explore to see how things work! Also through this process I have had many aha moments when learning about mysteries such as fireworks. Many things that (as guest) appear to be hidden are actually in plain sight and people walk past them every day with no clue!Great question. I think I'd like to be someone that is involved with the fireworks at the Magic Kingdom. Maybe one of those people stationed on top of the buildings or other raised hidden areas where the castle projectors are.
One thing I'd really like to see is what Disney World (all the parks) look like after hours. Can any cast member stay after the park is closed, and just walk around?