Just the facts.....
Regarding over-complicating matters, and contending the Annex 13 process does not need to be conducted to a proper conclusion, Lonewolf_50's replies all are ones I agree with. There is a wide difference between an investigation and inquiry into the missile battery and the military chain of command generally in the incident, and the subject areas of the Annex 13 process. Stated another way, a proper report will set forth "the record" of the flight and its operational parameters in detail. It's useful to recall that just - and this is a guess as to an accurate number - 15 years ago the kinds of maps, flight tracks, airspace structure, and other important elements throughout this thread weren't available so readily, just days after an accident. But these information elements on a forum thread are not part of an official record, and should not be mistaken for same. And an official record is quite important, is it not?, for the steps which should follow (for reasons noted in the prior posts).
Also it would be useful to know which particular security panel of ICAO Fortissimo is saying needs to be reconvened - ICAO has run various types of things, and seems lately to be in the event-production business more all the time.