A theme park is not a heritage museum. Rides and lands are build to get people in and sell food and souvenirs. When it doesn't perform well anymore (guests are responsible for that) and/or gets to costly to maintain it'll get a wrecking ball and is replaced by something new. Even Walt stated that and I'm positive if he was around the Disney parks wouldn't look like they do now. He was on the forefront of ride vehicles and attractions.I just don't understand the company's mindset if that's how they really feel about it. Wanting to capitalize and make money on contemporary/relevant properties and keeping links to the park's heritage (in the form of some of the best attractions at the resort) should not need to be mutually exclusive.
Try so see a theme park as a theatrical performance or rock concert, it's there for a certain time and is amazing until it's gone and that is ok.