It surely is because you corrode your target’s trust in technology. They moved from smartphones to pagers, now they’ll have to find even cruder types of communications.
If you lost half your gut or a kidney or had your stomach punctured you may be alive, but you’re definitely not battle ready. And you may never be again. A device that explodes in such close proximity to a body is more than certain that it will damage some internal organ. All these thousands of Hezbollah militia are forever incapacitated. You didn't kill them, but they can't hurt you in the future if let's say you decide to mount a full scale invasion on Lebanon.
