If the stall warning operates off aoa sensors, and you are in the mode not to believe the warning, why would you believe the aoa readout ? Can see it could potentially help, especially in recovery with uas, but otherwise what evidence is there that it would have helped the SA here ?
Well, let us see how this could be laid out in the cockpit.
First you have Port side AOA going to LHS AOA indicator, then Stbd side AOA going to RHS AOA indicator. The indication should be on the PFD if possible, and should NOT be numeric, but instead should be a simulated analog needle or tape display.
Then if you hear the stall warning, you can see the indicator bouncing in the stall zone and check with the other side for the same indications. Hopefully it is designed so as to get your attention, such as a pulsing red color when your AOA is excessive. Since it is moving you know it isn't stuck. Then all you have to do is believe it. Apply nose down stick and observe AOA decrease. Keep AOA in a safe range. Apply power as necessary. You sure as heck know you aren't approaching Vmo.
If you slap the equipment in a cockpit and don't train people in its use, then it is a waste. I'm sure a creative sim instructor can figure out some excellent training exercises to help bring AOA into your scan.