Have you ever heard of
WoW Insider?
Also, the whole point of a game, is for you to figure it out. Why should Blizz (or anyone) spoon feed you everything that is going to happen, and how to "get around it"?
You are not forced to use the Internet (other then to actually play the game) to find out what is happening. It's more like solving a puzzle. If you pay attention to the NPCs, the barkers, the quests that pop up, you would know what is going on and what needs to be done. Now I can understand timing can be an issue here, but since it happens over and over, chances are you would be able to see all of this at some point.
Also, this is info is on the Official WoW Website, the Official WoW Forums, WoW Insider, MMO Champion, and hundreds of other WoW/MMO related websites. I think there is even a blog post about it
here on Dugi's site.