ACARS and MH ?
Know next to nothing on this stuff (tho hugely interested) but plenty about Malayisan Work practices. Seems to me that lack of ACARS is a key part of the mystery, is it possible/conceivable that MH have not been collecting/monitoring it properly and/or have lost it ? If that were the case and ACARS data was being transmitted, just not received, it would change the whole picture wouldn't it ? Might also explain the concern about not getting the whole story at the press events.