What a ghastly video. What I do not see in BoX are the typical gsoline fires when a fuel tank explodes. We do have plenty of smoke, but only vers small fire.
Indeed, there is usually only very small debris littered across the surface after a crash. Earth is very hard and planes are very soft. Plus, aluminum (as well as most thin sheeted metals) burns very, very well. With the gasoline fire, only larger and peripheral parts tend to remain. Engine blocks usually get stuck deeper in the ground, leaving a small hole that you only find upon closer inspection of the crash site and usually is found where the harder clay or marl layer begins, a couple of metres down on reasonable farming ground.
Jet fighters, when crashing fast at a steep angle are often shredded pieces of metal in a small hole stuck in the clay a couple of meters down. I remember an F-5E augering in just some 500 meters in front of the runway of an airfield where I used to go flying. It went in vertically from about 4000 ft. (The pilot inverted to pull the plane around the neigboring mountain ridge "and the effin' ejection seat just went off, no idea why!"). There was an loud bang as well as a smaller explosion, but then - nothing - except a hole in a kindergarten playgound (some have been VERY lucky that day) that was rather difficult to spot if you weren't standing next to it. The F-5 is still stuck down there. It is about 20 meters down, beyond recovery.
We planted a lot of fighters that way and thus it has been demonstrated that if you plant an airplane, no squadron will grow from it.
Felix qui potuit rerum cognocscere causas.