What I really want to know is WHY the PF might have might have made this apparently inappropriate action. If he was still thinking he clearly thought it was the right thing to do. Once PF had the plane at 16 degrees pitch and.....
I don't think the pilot was able to think clearly, being overloaded with unreliable airspeed, ECAM Dings, ALT LAW, etc. I suspect that once he selected TOGA power, he simply went for an inappropriate combination of power and attitude with which he was familiar:
UAS: TOGA/15 degs pitch. ...................Cl/5 degs above FL 100
Wind Shear: TOGA/17.5 degs pitch.