@mickjoebill
"Having filmed 3 airframes being blown up as well as gas, petroleum, dust explosions, flashovers and numerous controlled demolitions for science docs I have a good idea of how explosions are imaged by video cameras."
My mispent youth in fire research agrees 100% with your conclusions. Having also worked in photo manipulation and other graphic artistry my first reaction to the video was to laugh.
I remember a documentary by an NTSB expert who said if you don't have recorded data then find all four corners and start from there. As far as I can see they haven't found all four corners yet.