Some scene pictures I see (in daylight) seem to show the cabin ended up relatively intact (although somewhat flattened vertically, and with the cockpit separated at the bulkhead). But no crater filled with shredded aluminum.
Not consistent with most the VVIs recorded, which to me implies:
1) break up in flight, with the cabin/fuselage then falling approximately level at a lower terminal velocity, and belly-flopping.
2) almost successful last-second pull-out for which there was not enough altitude or time (violent belly landing).
3) attempted pull-out resulting in (1)
Note that I'm NOT denying the recorded VVIs, just that there may have been a change in the dive in the last few seconds. Or the ADS-B transmitter was falling at one speed, and the separated cabin at a slower speed at impact.