Hence, if the light stays illuminated then we evacuate. However, what if the light does extinguish? Our QRH does say not to open the cargo doors until all passengers and crew are off the aircraft. Am I going to taxi to a remote stand and wait for steps? I suppose if there's is no other indications that there is a fire then yes.
Tot,
The Boeing QRH makes the note about not opening the Cargo Door in reponse to the Cargo Fire detection being ON, not Off after the condition no longer exists.
I've never seen a Boeing Checklist which mandates an evacuation in response to a cargo, or indeed ANY fire indication. Your airline may teach it, but it is neither a Boeing, nor universal procedure at all airlines.
With a Cargo Fire warning with no other indications of fire it may well be worth considering a precautionary disembarkation rather than a full on EVAC- you are less likely to hurt people.