Perhaps it has been a worthwhile endeavor from the perspective of the people whose jobs depend on the security apparatus.
Xkcd's graph comparing sources of radiation is a great example. https://xkcd.com/radiation/
Society has apparently lost its ability to weigh up risk in tne face of shock terror acts. If we want to save lives there are far cheaper, less invasive areas we can focus our attention on.
In some ways this is unsurprising. The business model of most broadcast media is to sell viewers to advertisers. The people running them are steeped in modern managerial thinking, where most individuals are yoked to a system of gaming specific metrics (e.g., viewers, pageviews, revenues, share price). We're (correctly) hardwired to treat danger as a priority. The obvious outcome is a sophisticated machine that can produce fear on demand.
For me, the winning move is not to play. I don't watch broadcast media. I don't listen to the radio. I use an ad blocker. I consider carefully what I click on. My anxiety level stays comfortably low. But I'd love to find a way to help more people.
Which country? Time of day? How are the roads, traffic? Did you consume any alcohol recently? In what condition is your motorcycle? Are you wide awake? Are you wearing the proper gear?
I may be picking nits but interpreting stats the way OP does does not seem to align well with the micromort minimization goal.