I don't see any conspiracy. I think it's obvious that the situation vis-à-vis fire safety has improved, and improved tremendously over the past 100 or so years. But I also think it would be a mistake to think that the answer to the question "are we there yet" is "yes". That is to say, don't assume we've reached some final, end-goal state where safety regulations are ideal.

Large, multi-fatality fires are less common now, but they do still occur. I'd argue that we can always aspire to get better with regards to fire safety.