True - it’s published by Crossway.
But so what? It’s edited by members of the DI, it’s partly written by members of the DI, it’s endorsed by other members of the DI, it’s plugged by the DI’s website, and most relevantly, it’s available for purchase from the DI’s online store.
That this book happens to be published by Crossway and not the Discovery Institute Press doesn’t mean it’s not a DI development.
Second, the DI includes a good number of people who are not “hardcore fundamentalists”, including Behe, Denton, Sternberg, Michael Flannery, John West, Bruce Chapman, Jay Richards, and others. Of these, none had an essay in the Theistic Evolution book, except West, and his essay did not advocate anything close to fundamentalism.
Is that an admission that Meyer, Gauger, Ewert, Moreland and the other DI members (sans West) who contributed are “hardcore fundamentalists”? Or just another deception by omission?