Wow Zombies are bad for the game economy

It's a good thing the wow zombies are going away now, isn't it? For the past few days, I noticed- or rather my money-making wife noticed -- that the undead throng was badly tanking Azerothian commerce. The reason is that a lot of players' bankers and Auction House entrepreneurs are low-level alts that succumbed easily to the plague and random Wow zombie attacks(or Wow zombie invasion). When a Level 65 city guard turned into a zombie wow, it would naturally aggro the low-level bank mules and auction house regulars, killing them instantly. It didn't help that most players-turned-minions-of-the-Scourge usually targeted the Banks and Auction Houses for infection. Actually, we even recommended it as the best course of action as a (not so) mindless ghoul.

When the disease grew potent enough to transform anyone it infected within a minute, it became practically impossible to accomplish anything. Especially not with Argent Healers(they could get 
Wow zombie cure) calling for a hasty retreat. Entire cities -- or key areas of cities -- were quickly transformed into ghoulish carnivals and it was simply too bothersome to do any business. As a result, players couldn't put anything up on the Auction House nor could anyone buy anything, either, slowing commerce to a crawl. My wife's daily Auction House profits of upwards 500 
WOW Gold dwindled down to nary a copper with her alt being unable to collect from the mailbox, move stuff from the bank, or scan the Auction House, as she died istantly to roving Wow zombies.

What's next in store for us? Did Blizzard really cave in to the demands of players who felt that the World Event disrupted their normal routine too much? Or is there something more devious waiting in the wings? I know my wife was so upset by being unable to conduct her business that she decided to hold off from logging in at least until the event died down. Now that the 
Wow zombie infestation seems to be under control, perhaps business will pick up again. Or maybe not, depending on what Blizzard has prepared for Azeroth. One thing's for sure, these Dawn of the Dead-type events certainly take a bite out of the economy.

Wow zombie invasion seems so cruel and bring a enormous trouble,but Wow zombie phase also gives the interest for players.