Was there anything heard from Israel? Can hardly imagine that they do not permanently, carefully and accurately monitor this airspace, which is just across the border that was a battlefield may times in the past.
If they did (monitor) they could at least line out some versions discussed...
Sorry if I overlooked anything on this matter.
Concerning MANPADs, IMHO, why not to consider more serious stuff that jihaddists took over in Lybia during the chaos in that country? There were C-125 and even C-200 there...