To be fair, the supply chain angle was probably the main point of the attack- it’s a psychological flex in the highest order, you can’t even trust your equipment anymore.
That's generally what sets terrorism apart from "regular" crime. Of course, if you're a civilian anywhere near one of these pager-bombs when were triggered it's going to have the same effect.
The blast radius of trust is much larger though. If we don't have a reliable way of stopping similar attacks in the future then it's pretty bad for everyone, not only for Hezbollah.
That's pretty much certain: First the pagers, then after they have a chance to switch devices the walkie talkies were detonated the same way.
I wonder if we should come up with a term for an attack whose goal is to sow fear and distrust rather than accomplish a concrete military objective.