Well, finally a bit of new info in that report : the aircraft fire/problems was also observed from the air , the FDR/CVR will be investigated in the usual normal way with the usual international investigation teams, Aircraft was transferred from TWR to APP sector in ACC with standard communications, and under radar control , so we will know what happened.. The report does not looks like a cover up and tend to give us facts . This does not really fit the rogue missile theory or mistaken identity . Mehrabad ACC is a joint military site , sharing the same radar data .
My guess if it was a missile , the military would of course know and the regime would react differently. A bomb or explosives on board is still a possibility though..But with an international team coming to the site in the next days , we will know soon I think