Edit: I’ve reposted this comment as an answer, and am self-downvoting this.
Note that Open Phil funded this project. https://www.nti.org/newsroom/news/nti-launch-global-health-security-index-new-grant-open-philanthropy-project/
[Edit – moved comment to answer above at suggestion of kbog]
I moved my comment to an answer after learning that the index was directly funded by an Open Phil grant. You’d do better to repost your reply to me there. Sorry about the confusion.