I like this part:
Why do you think the reaction is so overwhelmingly positive today as opposed to 1980?
Fans have written over the last 30 years telling me how eagerly they awaited the second film of the trilogy. I hadn’t realized how many young children would be seeing the film, and how it would effect them. I think the kids responded to the movement, the characters, and the fairy tale quality of the film. The humor helped make the film appealing to more mature audiences as well.
The humor appealing to adults gives you an idea that it is a much different humor than was employed in the later films.