Perhaps one should explain better then? Sorry but if you're sad over the closing of a building that served no purpose in the last decade, I have to question why. You have failed to provide an adequate explanation. Do better, I know you can because of your vast knowledge of the parks history.
I keep seeing posts like this in other forums and areas I am interested in. This is a poorly-formed utilitarian argument.
For example, there was a beautiful de-consecrated church located near me in the Italianate Revival style, designed by a notable architect and more than met the criteria for being listed on the National Register of Historic Places. Not only was the architecture stunning, the architect notable, but people celebrated people's most important moments there - baptisms, first communions, funerals, weddings, etc.
The primary school that wound up purchasing the property decided 5 years after making lip-service to preserving it, that they would demolish the building the neighborhood considered a beloved landmark. This angered and upset a lot of people, including engineers and architects, who rightfully believed the church building could've been adaptively reused.
Instead, the school's leadership and their acosytes mocked the neighbors, stating things like "it's just a building", "it doesn't matter", "it wasn't used as a church anymore", "we can't use it as a gymnasium because we want regulation-sized basketball courts", "you shouldn't care about what we do with our property" etc etc etc. So, the building wound up being torn down despite the recommendations of historic preservation boards, engineers, the desires of the neighborhood, etc.
In many ways, the tearing down of both that church and Communicore/Innoventions shows that the towel had been thrown in, even though that outcome didn't need to happen if only the people in charge had used some possibility thinking.
Places like this are more than "just a building" to a lot of people. I mourn the loss of great places, even if I never got to experience them in their grandeur.
Grand Central Terminal in New York City was very nearly demolished to build a modernist skyscraper. Arguments similar to yours were mounted: "it's old, it's ugly, trains are outdated", etc. Now that it has been restored to its grandeur, I doubt anyone today would argue that New York City would be better off without Grand Central.