The alliance data @ the git is good up to dragonblight, it goes dead ~10 quests in
Yes, this is a problem right now with Dragonblight. As well, any zone beyond Dragonblight does not load. Only Borean Tundra & Howling Fjord work without problems (for Alliance).
I filed a ticket about it on Tekkub's Google Code issues tracker two days ago. Tekkub's response: "They will be done when they are done. There's really no point in reporting bugs in them until I push out officially releases." :D. Those Dragonblight-and-on bugged guides have been in that state since early October; assumed when it was moved to Master that bug reports would be appreciated ;).