I think the point is not that interdependence is inherently safer, but rather that, all things considered, industrial civilization is both safer and more interdependent than the pre-industrial world. The electric grid, for instance, makes us much more interdependent than tallow candles or kerosene lamps, but it’s also much safer than using flames for lighting inside the home. The added risk from interdependence is more than compensated for by other factors.
I think the point is not that interdependence is inherently safer, but rather that, all things considered, industrial civilization is both safer and more interdependent than the pre-industrial world. The electric grid, for instance, makes us much more interdependent than tallow candles or kerosene lamps, but it’s also much safer than using flames for lighting inside the home. The added risk from interdependence is more than compensated for by other factors.