I wish people would stop being under the impression that anyone actually had the power to have Bliz turn off zombie event. Zombie event ended at this time in OG wotlk prepatch, and they literally don’t know how to recode the event. Just look at their blue post about how they messed Eranikus up which didn’t have one at all. Or how even though they planned on having the scourge invasion start on the 13th, it ended up starting when OG invasion started from “events that triggered it” - AKA the original coding they didn’t understand how to change.
edit: I was right. Wrath of the Lich King Classic Pre-Patch Event Issues