As David Rosenthal (formerly of Sun, NVIDIA, and Stanford) explains, the actual Arctic Code Vault is a PR stunt, and has almost no chance of helping anyone in any kind of realistic disaster scenario: https://blog.dshr.org/2019/11/seeds-or-code.html
That said, the rest of the project, which focuses on preserving several independent copies of repositories hosted on GitHub with a handful of partner organizations, is quite useful. From the same post: "They are using a range of technologies, making feeds available over the Internet, and partnering with the Internet Archive, the Software Heritage Foundation and the Bodleian Library. These are mostly things which will get used in the foreseeable future, and should be applauded for that reason."
That said, the rest of the project, which focuses on preserving several independent copies of repositories hosted on GitHub with a handful of partner organizations, is quite useful. From the same post: "They are using a range of technologies, making feeds available over the Internet, and partnering with the Internet Archive, the Software Heritage Foundation and the Bodleian Library. These are mostly things which will get used in the foreseeable future, and should be applauded for that reason."