If the video being shown is the correct video showing the actual accident, no reason to believe it is not, it reminds me of the old rudder hard over accidents involving 737s years ago.
The two I remember the best was the one at Colorado Springs and the one at Pittsburgh (I think) as I flew over both accident sites.
The rudder hard over caused accidents were near vertical impacts.
I thought that Boeing had fixed that problem. Something to think about anyway and I'm not saying that is the cause of this accident.