This reminds me of CDG-1, AKA the "Camembert", which is way smaller and in many ways terribly unpractical compared to CDG-2 but has that mid-century futurist vibe that makes it quite charming if you happen to be into architecture.
Outside: https://www.planitecbtp.setec.fr/wp-content/uploads/2017/11/...
Travel through time and space: https://pbs.twimg.com/media/C4YQxmQXUAInJRM.jpg
This feels like it's from The Jetsons: https://farm3.static.flickr.com/2899/13922331726_fd05d69d1f_...
The movements for preservation of architecture would likely have something to say about that. A lot of people are tired of the whole demolish-build shtick, and yet others find it insulting in its disregard for what they find to be monuments. In my opinion, some of the most inspiring uses of space and architecture today are happening in ex-abandoned, ex-unused industrial buildings.
An example I've visited recently is the former Peugeot factory in Brussels [0] that is currently used for exhibitions, concerts, or just hanging out at the bars and food courts that have installed themselves there following a doctrine of minimal intervention. Shortly it will be transformed into a museum of modern art as an outpost of Centre Pompidou [1]. To quote the architects whose proposal won: "We want to radically engage with and trust what is there." That sentence pretty much sums up the trend I'm pointing out.
Another example is Rijeka, a city with a unique history, that has a heritage of an abundance of industrial architecture and very unique urban planning. Many of its industrial complexes lie abandoned, within earshot of city centre. Some of them are being brought back to life, spurred, in large part, by the European Capital of Culture 2020 that is happening there. This summer EASA took place there [1]. It used the revitalised Export building (in the photos look for the building that has "exportavo" witten on it). 600 people slept in the same hall for two weeks. I was there, it was a cool experiment.
[0] http://kanal.brussels/ [1] https://www.dezeen.com/2018/03/23/car-factory-transformed-ar... [2] https://www.flickr.com/photos/107959684@N04/sets/72157670142...
However, this one, compared to other projects you mention, won't likely be usable for art or other entertainment as it is located within the airport area. It won't likely work again as an airport facility either, since too small and not adapted to modern requirements. It could maybe become a hotel like the TWA building, but that would likely cost a huge lot of money seeing the current state on the pictures, and the need has to be justified, "tourism" like for the Saarinen building won't probably be enough.
I'd be happy to argue "for" preservation, but the article does not show any viable projects either: it seems like people want to preserve, but without a clear idea about what to do with it.
On the "against" side, there are a lot of new projects replacing old buildings that have been a huge success.
The bit on the left, I assume, is the modern terminal. Notice the scale. The old building is small, for modern use. If it gets preserved, they must find a way to generate some additional income, because it's probably too obsolete to do that as an actual airport.