Why not just designate the pax sitting closest to the door jettison handle as being responsible for its operation in an emergency ??, a simple tap on the shoulder by the despatcher or HLO should do it. Why not make it part of the outbrief too ??
As someone who flies offshore for a living I am quite happy to fly on any aircraft the pilot says is safe, I am as saddened as any at recent events but knee jerk reactions help no one. I trust you guys and its pretty clear from this thread that you take your responsibilities very seriously. The vast majority of guys I work with feel the same and are happy to fly if you are. I know from my time in light blue that all aircraft have their problems, fundamentally I think the Puma variants are safe, been flying in the back of them for over ten years and never had a problem.