If you’re keen to drag pax out of an upside down cab that’s probably full of fuel then I think the solid fuel ballistic parachute probably comes in at the PXR phase (Debrief) of the incident.
But many GA aircraft that are accidentally on the ground where other people might be in a position to assist pilot and passengers, might not be on fire but there is still a risk from an explosive device in the roof (as in the article you quoted). Do aircraft fitted with BRS always have a warning that will be visible to potential assistants?