The disposal of the aircraft wreck of the Gerona (LEGE) B757 is very similar. It was also a low speed crash. The plane actually touched down at the runway but departed from it falling into a small cliff.
The Turkish B737 touched the ground tail first at very low airspeed and at a very high AOA, and then the rest of the plane became smashed to the ground getting halted in very very short distance.
I think that this is fact. Any pilot can understand it viewing the images.
Why the plane get in low speed condition is speculation, and why shouldnt we just speculate?