The BA crew _was_ monitoring the airspeed. They noticed it dropping and attempted to correct with thrust. But they certainly were aware of what was happening.
The Turkish crew was _not_ monitoring speed; they did not notice it dropping.
In any case there's nothing to be proud about... Not monitoring speed or passively staring at it dropping have the same effects... In both cases nothing was done until stick shaker activation (moving levers without effects didn't change anything while keeping the AP increasing the AOA did change everything...)