ANGLE OF ATTACK 48 degrees
Simply, they were doomed there.
...
if the correct response to the stall is achieved?
48° AoA is massive. Many test pilots have never been there. No modern Jet transport has ever been there in a controlled and monitored environment, so absolutely no data is available.
It is very questionable whether there were any "correct responses" in that situation. I also tend to believe that this was it, once they got there.