JP,
I apologise if it bores you but I have been nothing if not consistent and my opinion has never wavered from,
No body knows for certain what the actual weather was, as seen from the cockpit at any stage from waypoint transition to the point of impact.
Nobody knows for certain what the weather was at the crash site at the time of the crash.
Nobody knows for certain if they ever went IMC.
Nobody knows for certain if the aircraft did or didn't suffer a malfunction which contributed to or caused the crash.
If what has been alluded to on here over the past few weeks is true then I can fully appreciate the angst you must be feeling with regard to the upcoming enquiry but please lets try and keep the banter on here polite.