I don't think there is anyone carrying out a character assassination of the Captain. The investigation must be stringent and the investigators must think the unthinkable - there is nobody so important that they are above investigation.
As for press releases/conferences, circumspection is needed. I know the 777 MEC and ELMS well and I think that (for whatever reason) the authorities aren't revealing everything they know but that is not unusual in the 21st century with a hysterical 24/7 media on their case. And I'm not about to start directing those who might want to bring down another 777 where to look - although plenty of others have.
There may well be an ongoing hostage negotiation for all we know. If the press suddenly find the location of that, I think we can all guess the likely outcome.