Because it is very unique video. I do recommend turning off the sound. The narrator has a story to tell and he is not going to permit the facts to stand in the way.
For example, no fire, however severe, has ever caused the total collapse of a steel-framed high-rise building.That is the fundamental fact the narrator,like a few others, cannot come to grips with. Fires do not cause the total collapse of steel-framed high-rise buildings.