Yes, eye witnesses who will say 'the plane was on fire', the 'engines were misfiring' and e pilot was 'struggling to control it'.
It's worrying how quickly the Egyptians have gone from saying the plane is in Turkey, then it was down in Cyprus now just an hour it was a technical problem and it was not a bomb and it was not shot down. It was going in a straight line. If it was serious and they were diverting urgently then I'd imagine a turn to be made in the direction of SSH or CAI.
I doubt they'd get into coffin corner without the plane shouting at them to do something about it, not to mention both PFDs would be telling a rather unhappy story long before coffin coroner is reached. The MCDU will also tell them the max alt, planned at the optimum too. I very much down they'd go sailing throu REC MAX. The plane will be struggling with the climb, and will make it plainly obvious that it's not happy.