Winnerhofer:
Stall warning is set to occur before natural (aerodynamic) buffet starts. The stall warning threshold is approximately 1 deg less than the buffet onset AoA. At 7 - 8 degrees the airplane would be well into buffet:
P.S.
Although the EICAS is for system failures rather than pilot errors, perhaps a message like: "STALL: RELEASE STICK OR PUSH" would help a disoriented pilot?