"Enough" to meet what criteria? A couple foot blast on handheld device on a military personnel is brain surgery in comparison to typical rockets with accuracy and blast radii measured in double digit meters

Hezbollah operates a parallel telecommunications network. They are not a terrorist group so much as the de facto government of Lebanon and a parallel armed forces. It is unlikely that anyone unaffiliated with Hezbollah could have used these pagers.

like I don't know, someone's spouse or child? Someone standing next to the thing when it's sitting on a night stand?

Small charges (measured in grams) are extremely local and typically highly directional. They have a distinctive signature that is in evidence here. It isn't like a giant bomb going off.

> everyone in range is hit.

The range is tiny. Go watch some videos, for example this one: https://x.com/DrEliDavid/status/1836037485492629605

People standing directly next to the target are unharmed.

With the size of these explosions, the "range" seems very small.