The issue isn’t just a simple oversight. Git includes the file name as part of the tree and commit hash. The hash has security implications. There’s really no way to make the hash support case insensitivity without opening up a multitude of holes there. So there will always be a mismatch, and you can’t just fix it without changing how git works from the ground up.
I googled this story to, uh, fact check it, and found this article saying that her move to OF is fake news. Except, upon closer examination, it seems the article is AI slop and completely made up. How ironic.