I see nothing wrong on suggesting possible scenarios about what might have happened based on known facts if the person doing it knows what they are talking about. An official report (if any) might not normally be released for, say, 18 months after the event so it is useful to discuss what is known about accidents in advance of the final report. Its not just this forum where this happens - reviews of recent accidents are carried out by a number of organisations, e.g UK Flight Safety and, especially IATA who host a meeting of about 15 to 20 airline safety managers every year at the start of January to review the accidents during the previous year and try to see what lessons might be learned.
The main problem with this accident is that, as far as I'm aware, the Turkish authorities have not issued any statement of facts (unless its tucked away in Turkish somewhere?). Compare this, for example, with the situation in the UK where the AAIB might well have been expected to have issued a Special Bulletin on such an accident if it happened in the UK by now containing the known facts.