This incident actually took place in the US and not in Europe from what I am made to beleive and this glitch( if you will call it that) affects only A320's not 319 or 321's.Apparently as the TOGA was applied the aircraft was very close to VLS at which stall protection eases the nose down limiting Nose up authority.Airbus is looking into it but for the moment Flap 3 landing is reccomended if turbulence or wind shear is reported in the approach phase or later.