MerricB said:FtA had a big problem in that it turned Greyhawk from a "fill in the blanks" setting to a "blanks filled in setting". And what was worse was that the blanks that were filled in were often at odds with that had gone before. (To say I am unfond of 'Ivid the Undying' understates it somewhat).
I can see the argument for the first, though I don't personally agree that the blanks being filled in are to the level that it exists in FR. My take on it is that it opened up as many or more blanks for GMs to fill as the material filled in for us. But I know the level of detail is a personal preference.
What I'm not sure I agree with, is that changes were at odds with what had gone before. Can you elaborate on what broke from established continutiy (so to speak)?