Hussar
Legend
Show me the official well playtested 5e Greyhawk campaign crunch? If you can do that, it's available. If you cannot, it is not.
Again, I get what you're saying, but, you seem to be ignoring what I'm pointing out.
You will NEVER GET THIS. It is not going to happen. Or, if it does happen, it's going to be YEARS down the road. It's been more than a decade since Greyhawk got any official material for it. And that was in Dragon. Which still wouldn't satisfy you since it's not in a hardbound book and it's not particularly well playtested.
So, you have a choice. Either sit and bitch about something that is never going to happen, or unclench just a smidgeon and look at what is actually out there. I mean, it might not be official, but, it's pretty well play tested and it's written by people who are very much experts on all things Greyhawk, so, basically, your only hangup is that the Oerth Journal doesn't have that official seal of approval.
Not that that seal of approval means much. My Ghosts of Saltmarsh includes the adventure - Isle of the Abbey. In the Abbey, there is a room in which are described, in the boxed text, three ogre zombies and a crystal minotaur golem. The stats are one ogre zombie, two ghasts and one crystal minotaur golem.


At the end of the day, you have to choose - either sit and wait and bitch or look at what's actually available right now. Because, right now? There's some bloody fantastic stuff for Greyhawk being written. Sorry it's just not in the format that suits you.