I know there is a documented case of a non-involved person getting injured, but do you have evidence that this attack was not 99% effective? The attack vector was the device specifically used only by involved people.
I think this only goes out to show that criticism towards Israel waging warfare is not really about the way that warfare is fought, but really on the right of Israel to fight at all. As no one in history has achieved a more precise attack in urban setting towards a non-uniformed organization ever.
You are making that up and quoting yourself. There was not a single fire-control system onboard these pagers; there was no visual designation of the target, and no confirmation that it was being carried by it's owners. The target was broadly designated and not even discriminated on a case-by-case basis. A button was pressed, and consequences including the death of a child are now in play.
Israel has the capability to field targeted strikes on their own using domestic Litening and SPICE munitions (not to say they don't end up targeting civilians anyways). The unforunate bottom line is that this was an indiscriminate and presumptive attack that generally relies on a complete disregard for collateral damage. Innocent bystanders died, ones that would not be targeted by any morally accountable soldier in the command-and-control loop. That means an error was made, in civilized armies.
If an enemy had exploded small remote controlled bombs in American supermarkets and homes targeting members of the American political parties, the sponsors of terrorism and oppressive dictatorships in many foreign countries, there is no question we would characterize it as a terrorist attack.