In fact what MJ said was
If you don't pitch to the critical angle of attack you cant stall.
That is incorrect-the critical angle of attack can be reached without any pitch change by the pilot. Look at the Papa India accident at Staines or the BMI accident to the ATP.
The critical angle of the airfoil can be reached by a configuration change(PI) or a build up in ice (BMI).
Angle of Attack is also goverened by RAF and again that can change to bring the a/c to the critical angle without any pitch change.
In both of these incidents a total of 6 professional, pilots failed to recognise that their aircraft had stalled and thats one of the reasons why instructors need to make clear unambiguous statements about stalling