Two questions...why did the re-entry burn not take place...and without a visual of the vehicle and no provisions for wreckage recovery, how will they determine the mode of failure?
The video supplied all the necessary info up until it burned up.
The craft rotated so that the heat shield was not in proper alignment with the atmosphere. the fins of the craft appeared to melt, causing the situation to get worse. They need to do a weight distribution analysis and perhaps add some gyros...................
Answer 1: ship lost rotational control
Answer 2: data streams