I believe they shut down sections of the park for filming. They have to do that for reasons you just mentioned. So they can get the right shots, and take their time, without idiots who think they deserve better, getting PO'd when they have to reshoot. It's all for the general public, a way to show people in middle America who might not know about the park. Rosie does great things, for children and theatre especially. Why do so many people have issues with her?! It's odd. . .