Parents decide to travel through a war zone with their child and everybody is amazed that they got killed? These people showed a total lack of responsibility for their child.
If this was the beginning of the war and they were trying to escape the conflict and died, like so many Ukrainians in 2020, I'd be more struck by their deaths, but they were careless and thought all these horrible things they were reading in the papers for a year could not happen to them.
This was the first thing that came to my mind. Who the hell goes to holiday into war zone and take their kids with them? I am putting the blame on Russian media and the fact that Moscow says that there's no war on that area, and anyone who doesn't read any other sources for information stays ignorant about the situation.
But like you said, it doesn't manage to take focus from war crimes that Russia is actively doing.