The conversation isn't about self preservation. It's about fault allocation. When I pull over its on the safest section of road possible. No hills, curves, obstructed sight lines, but that's not what we're talking about here.
I started off using language like 'the truck driver' and 'the person who...' for that very reason. I slipped into using 'he' and 'him' because I'm typing on a phone and figured people would understand that it could just as easily be a woman. However, to your point about screaming kids - that could easily happen to a man or a woman. You undermine your whole point by gender stereotyping and suggesting that only a woman could be distracted by kids as they are the ones charged with those types of domestic tasks. The fact remains that distractions, no matter their origin, take concentration away from driving and cause these types of situations. Some people in this thread are looking for ways to blame the car, but I still haven't heard any reason why the person at the wheel of the truck isn't completely at fault for causing this accident.