Smott, all I am saying is that the video must be properly analysed before being discounted. I agree, soot is an important feature but there are still too many holes to discard any piece.
There have been regular summaries of physical bits that are known to be missing but there are other things too. No one has answered my query about contrails.
All we need is one pilot who flew that day, or even since, to confirm that there were no contrails, as in the video, or not. If there were persistent trails at that height then that would nail it.