punkalouver,
According to them, there's no obligation for the NTSC to release the reports to the public. From 4 years ago until recently, someone else headed the NTSC, and only now has the NTSC opened up more information to the public (some say because of the Garuda crash, some say it was due to the new head of NTSC, though the reasons are likely to be somewhere between the two).
You're not the only one in the dark here!
PK-KAR