Re '…
viewed by the crew as nuisance warnings.'
There are no nuisance warnings with EGPWS / TAWS, only valid ones until you can prove otherwise at a safe height.
All terrain warnings must trigger an instant climb to
above the safe altitude and then re-evaluate the situation.
Humans err more often than EGPWS.
Nuisance - false warnings can be investigated and rectified; engineering or procedure.
'Nuisance' - true warnings are usually buried.
https://www.flightglobal.com/complac...126596.article