Author of Tides of Darkness worked with Warcraft II maps instead of WoW maps (because he was an idiot, I guess, it was overall terrible book, IMO the worst out of all Warcraft books...and yes, I can support that statement). This is supported by fact that Horde went directly from Hinterlands to Quel´Thalas, something that is possible with Warcraft II maps, but not with WoW one. After they fled Quel´Thalas, they went directly through Alterac Mountains to emerge on shores of Lordamere, once again something possible with Warcraft II geography. Alliance forces go through mountains too and they are able to emerge north of Lordaeron City, once again something possible with Warcraft II geography (not with WoW one, because, you know, Stratholme, Hearthglen, Scarlet Monastery which are on the way...extremely long way, instead of short one like in Warcraft II). And then, people from Stromgarde are able to see Alterac Mountains from their capital...guess what...once again something possible only with Warcraft II geography, because in WoW, Hillsbrad is between Stromgarde and Alterac, while they are neighbours in Warcraft II.
People compain about Knaak or Golden, but honestly, Aaron Rosenberg is much, much worse. Not only does he butcher lore, he voluntarily chose to use outdated maps in book which is based on warfare, making Tides of Darkness nothing more but fanfiction.