The second sundering was a direct response to the level of outright hate WotC was getting for the Sndering and Spellplague changes. They, as you said, reset all the 4e changes and restored all the masses of material used previously.
More or less anyway.
But I was referring to the difference between the reactions to the first Sundering and the reset of Greyhawk.
It’s funny how canon is vitally important and must be preserved. Until it isn’t.
Well, I tried to explain the difference
here, albeit with an analogy to stare decisis. Because of course I did.
But one thing I have repeatedly noted is this-
Now, the greatest strength (or weakness, depending on your view) of FR is that it isn't just a campaign setting. It has its own rich tapestry of lore through countless novels, video games, and other media (including the recent movie) that have added more story to the setting than other D&D settings.
The thing about FR is that because of games and novels and Greenwood, there is just more. So people that really are into FR, are really into FR.
GH doesn't have that problem. Not to mention that for some GH fans, most of the "more" doesn't matter.
In addition, I think it honestly helps that it's been so long without GH that at this point, people are happy to have it back. And they're happy that WoTC is releasing it in a way that
isn't prescriptive, so that they can have "official support" for a setting, but there isn't a whole lot of constraint in re-making it their own.
It's a big difference. Talk to a GH fan the past ten years, and it's all, "Where's GH? What about the DM's Guild?"
Talk to an FR fan, and it's all, "When are we getting the big campaign books with all the cool lore?"