Uh, yes, that is what logically follows.
If there's an obvious 'kill-zone' and you let your children anywhere near it without some form of restraint... well, let me rephrase this slightly: if there's an obvious {zone of danger} and you let your children anywhere near this zone without some sensible form of restraint (here's a good form of restraint: don't bloody go there you ninny).
Replace the {zone of danger} with anything you like - giant chasm, electrical transformer, soldier going on a PTSD rampage, other form of serial killing, warzone, bomb test site, massive fire, colony of starved cannibals, nuclear fallout site, Barney the Dinosaur's house - and you shouldn't be surprised if your child falls down a cliff, gets electrocuted, stabbed, shot, caught in crossfire, bombed, burned to death, eaten alive, develops cancer or gets molested.
While it may not always be an 'accident' as such, it's hardly the zone's fault. It didn't go, "Bwahaha I WILL TAKE THIS CHILD" it just so happened that something was in the wrong place at the wrong time. Except in the Barney's House case; that one is genuinely malicious. I hate that goddamn dinosaur.