REX interviewed 5 "random" REX Engineers and they all felt comfortable reporting defects. I'm wondering why they didn't interview any of the Engineers who reported via the ALAEA that they are being disciplined (or sacked) for reporting defects.
CASA has a vested interest in this matter. If they find that there is a problem at REX, it means that their oversight has been ineffective. Having seen all the documents, in think ineffective is an understatement.