Looking at the images it appears to me that we don't see the whole wreckage path.
First of all the quantity of structure/materials we see does not seem to represent the whole structure of a 737.
secondly the wreckage path is too short for my taste. Impacting at 120+ kts at a shallow angle (3-4°?) should produce a longer distance from initial impact to full stop.
So maybe to the right of the image there is some more intact structure left.
Otherwise it would be really incredible that someone survived in this atomised structure.