Since you have a terrible habit of misinterpreting or misunderstanding what I write, I am pretty confident I didn't, and you just made something up.
Such as here, where you misinterpret me giving examples of what could be in that chapter so that new worldbuilders would have ideas of what to think about when making their world, as things that must be done.
The fact I mentioned elves doesn't mean that I am requiring or "demanding" elves be given any special treatment--or that we (or WotC, or new worldbuilders, or whomever) can't use elf lore from other editions, or anything else you're making up right now.
So why can't they use Goliath lore from the 3rd edition of the game when Goliaths were added to Greyhawk in Races of Stone? If they can just not write anything and use the lore of elves from previous editions, which include elves that no longer exist, why can't they do that exact same thing for Goliaths?
And you're misinterpreting or misunderstanding me here again. The few words or sentences are what the book would suggest new worldbuilders write, so they don't feel they have to write reams of in-depth information on every aspect of their setting.
Because certain other posters here have said that to them, worldbuilding means going into incredible amounts of depth regarding things that aren't actually important to the game, like detailing ten generations of the royal family. That's not important for either the game or for most players to use as background information. But writing a couple of sentences on where and how the various species live is something that a new worldbuilder can and should focus on.
So, the chapter just needs to say "You only need to write a few words or sentences on the races in your world" and give an example using two or three of the races and that's it? Okay. That could be done without mentioning Tiefling, Dragonborn, Orcs, or Goliaths so there is no reason to assume that those races being newer to Greyhawk would be a problem with that advice.
Also, while posters may have said something regarding the amount of depth, notably, those posters do not work for WoTC on writing the DMG. So their opinion on what it should say doesn't really amount to much of anything.
And you're misunderstanding me again. You must be doing this on purpose. Do you really not understand what I wrote? Or that those two different paragraphs referred to two different things?
Which one refers to Worldbuilding as done by a DM who would need the guidance of the DMG? Is that the one where you facepalmed at the idea of it being an action instead of a type of media? Or the one where you called it a type of action that can be taught?
See, because I was referring to the action of world-building, which might be taught in a chapter about how to world-build, which got me derided by you because CLEARLY it is a type of media that you consume and not an action. Except when you referring to something else called world-building which is an action people can do.
Nope! Another misunderstanding--or are you outright making stuff up now? What I have said is that it would be better for them to make a new world in this hypothetical chapter. "This would be better" =/= "not making this choice is a grave mistake."
You have repeatedly stated they are making a mistake.
Mostly because I doubt that WotC is going to lean into the things that make Greyhawk different from any other standard fantasy world, like having a crashed spaceship.
If they did, if they decided that not only were they going to emphasize the weirder or at least nonstandard aspects of the setting, but make them into the main focus of the setting--such as my thought (not demand, not requirement, just an idea) that they bring weird tech and radiation mutants and things like that into the world--then I would say that Greyhawk is a good choice. And so you don't misunderstand this, "is a good choice" is my personal opinion on the matter, not an objective measure of Greyhawk's worth, since I have no personal nostalgia for the setting and my favorite D&D settings have always been the non-standard ones.
Why do you doubt that? What reason do we have to think that they won't lean into the things that make Greyhawk different? Because, you just admitted there is a way for them to do this in a way that would be interesting and different, so it is a possibility. They may not, but they may do so.
Now, I will agree that they are unlikely to make Greyhawk full of irradiated mutants. But they could quite easily have the Barrier Peaks in the books and talk about them and what is there. Since there are pistols and rifles being added the PHB, they could take the time to talk about Murlynd the Cowboy God and how these items are blessed tech based off ancient wonders.
There are things they could do, so why not just wait to see if they do them, instead of declaring this a mistake and that they will clearly not do anything good with the setting.