The point is not make airplanes “as safe as possible.” It’s to make them safe, while also balancing cost, fuel economy, maintenance, payload, etc. In this case,

The point is not make airplanes “as safe as possible.” It’s to make them safe, while also balancing cost, fuel economy, maintenance, payload, etc. In this case, it is not clear that the actual safety risk is severe enough to justify the significant expense required to resolve it.