This kind of high speed descent, i could only imagine the structural forces they were likely hearing as they exceed maximum Mach, not sure if they would’ve heard the stab separation. The engines too, with the now extremely large
intake of high velocity air, the fans and internal components being pushed far past their design limits, compressor stalls if not possibly coming apart internally.
There’s going to be little to nothing at the impact crater, same as the couple of F-16 sites i was at in my time. Being upper transonic, if not nearing supersonic, that sheer amount of kinetic energy impacting the ground, those forces will be instantaneously dissipated through the weakest structure: the entire airplane. And you’re talking dissipated into small fragments, even the engine cores and landing gear structures. What small
aluminium pieces would survive, would likely be easily consumed by the explosion of the fuel. I would be very surprised if it can ever be determined what exactly happened when, along the known general accident timeline. Structural failure as something causal, or something resultant? May very well never be known with any certainty, only guessed. All that seemingly remains are some apparently found stab pieces, some brief ATC audio, and the aircraft records.