It reminded me a bit of some of the Discovery Channel's shows where they stress that if this multi-million ton container ship doesn't stay between the two entrance markers to the harbor, it kill everyone on board and probably destroy millions of dollars in goods. The entrance markers are 5 miles apart. The fact is accurate, the narrative is not.
If you want to be really scared go read the OSHA reports on any of DOW's chemical plants. I would be willing to wager that more people have died in the last 5 years of industrial accidents at their plants than all of Los Alamos. The Union Carbide Bhopal disaster killed over 2,000 people, one accident.
The point is the article was not written to compare the risk of accidents at Los Alamos to that of other similarly sized industries, nor was it written to highlight the misalignment of lab management with safety goals. It was written to characterize nuclear materials as scary and dangerous and carefully avoids any way for the reader to compare that risk with other risks they are both familiar with and are not concerned about.
In short, it is anti-nuclear propaganda.