Killing 3 people and maiming 234 using explosives and shrapnel counts as mass destruction in my book.
It definitely doesn't count, in my book. You post-cold-war kids are so cute. Did you know the band Megadeth got their name from something that was believed to be reasonably likely could happen? 237 casualties isn't even a blip on the WMD scale. WMDs are for serious scale murder.
Exaggeration sounds like good idea when you're going after a specific bad guy, but it reminds me of how "registered sex offender" used to mean "rapist" and now, for all you know, it can mean some kid who sext-messaged his girlfriend or maybe even got drunk and peed on a parking meter.
Overbroad terminology abuse will remove stigma. Now the next time someone wants to start a hideously expensive war over alleged WMDs, the public will say "why should I care if Saddam II has a hand grenade?"
Hmm... now that I think of it, this could save us a shitload of money. Ok, you've convinced m-- wait, what if Saddam II actually has (oldschool definition) WMDs? Are we going to need a new term that means the same as WMD used to mean, like "WMDs, no I mean for real, 'Threads' and 'The Day After' style, dude!"?