But, that's not really true.
There's been TWO realm shaking events. Time of Troubles and the Spellplague. There was no major Realms change from 2e to 3e nor 3e to 3.5. And the changes in 5e have largely been smoothing over the changes that were made in 4e.
Hmm. Well, admittedly, I'm not a Realmlore guy, but I was under the impression that there was a RSE for the 3e transition- didn't they make major changes to the maps and stuff? Not just politically, but geographically? But maybe I'm wrong.
But the 4e RSE definitely counts. Just because it was mostly a 'remove-the-last-RSE' doesn't make it a not-RSE; just like the recent DC comics event that rewrote the whole shebang from Crisis on Infinite Earths onward was not a not-event because it retconned the retcons.
Greyhawk had the Greyhawk wars. So, you've got me there. Grey hawk has had one less RSE than the Realms. Given that Greyhawk has barely had anything written for it in twenty years, that's perhaps not terribly shocking.
But the Greyhawk Wars weren't a "Realms-Shaking Event" level event. They didn't do a wholesale rewrite of the pantheon or shove a new continent onto the world. They were... a bunch of wars. Yes, they shook up the political landscape, but I hardly think they're comparable to the stuff that happens when the FR gets ready for a new edition or whatever.
And what is not shoehorned into Greyhawk?
Oh, no doubt, GH sticks all kinds of stuff in there... but it feels so much more coherent to me, despite the mountains more Realmslore that's out there. It's a matter of style and taste; to me, GH just feels like it's more... discriminating?... in the way it uses stuff. FR just kind of tacks a god from a historical pantheon or another setting in the mix without thinking twice, while GH tends to at least put a dose of paint on it to make it fit better. But I agree, GH loots material from everywhere shamelessly.
They both are chock a block with Mary Sue NPC's.
The npcs in GH don't dominate the GH setting material like they do in FR. They also aren't a bunch of heroes. They're a bunch of mostly-neutral, mostly self-interested guys trying to stop major imbalances from arising. They might be ultrapowerful, but they are restrained and act almost entirely behind the scenes. Whereas I see FR's approach as more "Look how many of our npcs are superheroes and supervillains!" I vastly prefer a world with fewer uber-npcs.
Good grief, Greyhawk has a bloody GOD as a king.
Iuz? Yeah, he's a demigod, and I think the original idea for demigods in D&D was that they were "almost-gods" that lived on the Prime Material. But I could be wrong about this; that's just what I've inferred from various things in the old WoG boxed set.
Funny how the setting has "nothing original" but also has too much material.
You say this like there aren't mountains of material waiting to be used as a source.
You're more than entitled to not like the Realms. I get that. I really do. But you are not entitled to your own facts.
And I agree! But I don't agree on your reading of the facts. I think the differences are pretty deep, mostly in style and tone- but that's where the difference gets important. That is what makes me like WoG and dislike FR. And hell, I know a Renaissance style throw-it-all-in setting
can work for me; I really like Eberron. But all the things that FR does poorly (for my taste) are things Eberron does well (npcs are low-level, the kitchen sink is piped in to the setting instead of sitting on top of the cake).
Like I said, it's a matter of taste and style. FR doesn't suit mine. That doesn't make it objectively bad; just
subjectively bad (for me and others who feel similarly to me).
But again, the differences between FR and GH are far deeper than you credit. (Again, in my opinion.)