AFAIU, the code is quite mature. Yes, it does not have a lot of activity, but apparently the same was (is?) true for the ntfs3 driver
That is something you need to ask the Fedora folks.When you simply call mount, with either no filesystem type or with -t ntfs, mount will call an existing mount.ntfs to handle mounting NTFS. (This is true for any filesystem, mount will try to call mount.TYPE to handle anything special for a certain type; see man 8 mount, the description of -t/--types.)
That’s why, at the moment, attempting to mount an NTFS filesystem results in a call to mount.ntfs, which is a symlink /usr/sbin/mount.ntfs -> mount.ntfs-3g, which in turn is another symlink /usr/sbin/mount.ntfs-3g -> /usr/bin/ntfs-3g.