How does it show that? It does not show the aftermath, just the collision, do we have to assume it disintegrated and that there were no pieces of wreckage left?

Furthermore, its plain to see in that video that the wings do not fold up neatly into whatever size hole the nose of the plane makes.

Additionally, it is a much smaller plane hitting a target at 90 degrees under controlled circumstances. I honestly do not know how it can be compared to a huge passenger jet that hits a wall at a 40 degree angle.