Maxperson
Morkus from Orkus
So let me get this straight...
You consider the addition of the wizard order to the Grayhawk campaign 'poor GMing' (or 'a poor GMing call') because the game was specifically called out to be Grayhawk? If it'd been called a homebrew campaign with Grayhawk and Dragonlance as inspirations, that would not have been a poor GMing call? What if it had been described as a homebrew Grayhawk campaign? Homebrew Dragonlance but everything but the wizard order Grayhawk? Just plain homebrew, with no mention of a campaign setting?
Where does the line go for you when the addition of the Dragonlance wizard order into a campaign that uses the general geography & cultures of Grayhawk stops being a poor GMing call?
I've already answered this multiple times. It's about expectations. If someone tells me that they are running a Greyhawk game, I expect Greyhawk and nothing else. If they are going to add other things like Dragonlance, they need to be upfront with me and tell me that they are running a home brew setting mixing both. Then I'd expect things like Gully Dwarves in the Barrier Peaks and Wizards of High Sorcery in the Great Kingdom, so there wouldn't be an issue.