My response you quoted was specifically in response to it being a creative failure. Not that they can't one day do something with the building or real estate. That is a seperate argument. Salvaging it creatively is a different drawing board than closing the entire place until the company decides to utilize the real estate. I have been in the themed entertainment industry longer than these boards have been, so it is an industry I understand very well. Wonders of Life, River Country or Disney Institute were all examples of great ideas that they did not salvage before they were replaced in concept or shuttered completely. There are many more.
Galactic Star cruiser is not Woodstock, an event that was so unruly from its rapid demand of a tough crowd that they had to stop charging admission for safety, it is Disney wondering if people would stay the night in a boutique theme park without as much to offer as they should, in a price point they could not figure out a ROI for because theme parks are expensive to staff, so they allow entertainment in bulk with large attendance to pay for it.
That is great that you understand that for business, but as even you say, this product failed the market.
Personally, I am of the business philosophy that while a product that tried really hard can fail the market, if it failed the market, it was not delivering what it said it would do. This is why this product under that, failed in both senses.