So the pilot flew to the card speed. Then after the accident it was increased. That's why the pilot concerneed had 120 knts stall in HIS book.
Pilots never fly to a stall speed as it is only a guide. The aircraft stalls only when too much angle of attack is 'pulled'. For convenience, this is approximated to a speed in each configuration. Speed margins are then added to this for manoeuvres such as take off, landing, tactical manoeuvring etc.
On the very rare occasions outside flying training that one gets close to the stall speed, one relies on the aircraft stall warning characteristics to avoid the stall.
I can't see where your question is going.