The video is quite shocking in relation to how fast the situation develops.
If - to be simplictic - the right hand turn which started at 42 seconds was too aggressive for the aircraft speed/energy at the time, when was the ac fate sealed - at 45 secs, 50? It looks like its definately all over and unrecoverable at 53 seconds, if not earlier. When would you guess the stall warning went off?
Not long to realise the mistake. I assume they would have done this many times before, but this time they were a few critical knots short. Seems rather dangerous to be trying to fly so near the stall limits anyway, or where they actually far off the "approved" speeds do you think?