Jilted:
For some unknown reason MAS has never released the preceding few transmissions leading to the last transmission causing all this speculation. He may, in fact, have read back the handoff and ATC replied with "have a good flight" or "see you at the party tomorrow night".
From:
Malaysia says there's sealed evidence on MH370 that cannot be made public
BEIJING - A Malaysian team have told relatives of Chinese passengers on board the missing Malaysia Airlines (MAS) flight MH370 that there was sealed evidence that cannot be made public, as they came under fire from the angry relatives at a briefing on Wednesday.
The sealed evidence included air traffic control radio transcript, radar data and airport security recordings.