Now hang on a minute. Nowhere in any Boeing document does it say that stick shaker alone is necessarily Airspeed Unreliable.
Here is the text from the Boeing QRH for items that may be evidence of Airspeed Unreliable:
Speed/altitude information not consistent with pitch attitude and thrust setting
•Airspeed or Mach failure flags
•PFD current airspeed box amber
•An amber line through one or more PFD flight mode annunciations
•Blank or fluctuating airspeed display
•Variation between captain and first officer airspeed displays
•Radome damage or loss
•Overspeed warning
•Simultaneous overspeed and stall warnings
If the stick shaker activates after lift off and power, pitch, flap position, aircraft performance and primary and secondary Airspeed indications are normal the decision whether or not to perform QRH Airspeed Unreliable actions is purely discretionary.The whole point of the checklist is to determine which, if any, ASI is reliable. Even engaging the autopilot is not prohibited and I would say that by the time it was engaged there would have been time to assess that the stick shaker was spurious and no hazard would result from engaging it, given that it could be immediately disconnected.
So let’s not start making opinion fact and tarnishing those who aren’t around to defend themselves.