That's not exactly true. From my understanding, what happened is that the maintainer for this project went on vacation in April 2022, and didn't reply to messages from the kernel team. [0]

But we can indeed see plenty of work being done by devs. [1]

So, I don't know what to think, I haven't kept with more specific stuff, but is the work done not being merged since? I couldn't tell without serious grepping.

[0]: https://lore.kernel.org/ntfs3/da20d32b-5185-f40b-48b8-298692...

[1]: https://github.com/Paragon-Software-Group/linux-ntfs3/commit...