What's "enough" to me are these armchair critics holding it against Blizzard for not establishing every single aspect of the lore in this game from the beginning in stone, as if it's cheating to make something up as you go along with it. Oh no, Blizz didn't have every expansion planned out 18 years in advance!? /sarcasm
This is not a global society as we know it. The world has not been fully explored and mapped. Only in the last decade was open contact established between the Eastern Kingdoms and Kalimdor.
It's not as if gnomes on gyrocopter's have made a Google Earth map of Azeroth. We travel mostly based on necessity, or as freebooting mercenaries, pirates, and explorers, and there is still plenty to be explored on Azeroth.
People just love to point out perceived faults, but in this context you just come as a missing the point. A game like WOW is something you "play along with" in this context. There are certain rules you don't break if you don't want to insult the intelligence of the fans, like blatantly changing what was well known and established, but detailing new places on the planet we haven't been to isn't breaking that silent contract. We nerds do love our details, but in this case people are just wrong and making assumptions about the level of globalization this society has achieved in WOW.
Not showing these places on a globe of the planet years before they came up with the idea is not the crime you guys make it out to be. It's just pedantry. Lighten up and play along.