Microburst2002
The FD guidance you have stated is the normal behaviour of SRS mode. However if you read DSC-22_40-40 P 1/2 the SRS has modified behaviour in wind shear conditions. Stated below:
"In wind shear conditions, flight guidance acts on specially adapted FD pitch orders received from the speed reference system (SRS). The pilot must set go around thrust immediately (which also triggers the FD SRS mode), and follow the pitch order to execute the optimum escape maneuver".
So as long as you are in SRS you can safely fly the SRS to get out of wind shear. But the real problem is when THR RED/ACC ALT is low something like 800ft AGL. Because now LVR CLB will flash while still in wind shear which off course you should ignore but the SRS will also change to CLB. The flight guidance no longer will modify the FDs for wind shear conditions and aircraft will pitch down to accelerate to initial climb speed. This can be dangerous. If WS conditions still exist you need to ignore FDs and fly 17.5 or even full back stick if needed to keep climbing out of wind shear.