The correct reaction-since the fines involved not only actual actions but training and they were not contested-would be to bring the department up to date on training. Had this happened during an actual fire, there might have been others put at risk/injured/killed because they were not trained on the dangers involved. Since a firefighter lost his life, I hope the lessons learned go far deeper that "no more helping charities." IMO, this firefighters death should be viewed/treated the same as if it ad occurred during an emergency response-perhaps even given a harder look given that this was a planned event and you did not have the "fog of war" to deal with.
Certainly not trying to disparage anyone-but we all ought to take away the fact that a short cut when setting up a pro bono set up for a church social/neighborhood party can be just as hazardous as one on a money job.