Nice find! Another quest item without a zone tag on it, lots of fun

+REP
The spamming them, are you seeing a huge stream of them, or just 2 per cooldown?
If you're seeing 2 per cooldown, you're using the standard broken BC quest item targetting function and theres no need for g15/macro. Use the item and get a targetting circle, click, instantly use it again and you can get another targetting circle before it goes on cooldown allowing you to get 2 fireballs in 1 cooldown. Works for many many pre-wrath aoe quest items. I havent gotten more than just 2 fireballs at a time using G15.