The video is useful in showing that the aeroplane was pointed very nearly straight down, after nearly completing something like a off axis loop. As has happened too many times before, the hard pull up at a low altitude did not result in recovery from the dive.
We don't need to see any aeroplane crashed, but much less so an antique of such historical importance! As a wise old friend told me after he saw me do something stupid overhead: "No one ever died flying a normal circuit!".