The game crashes in the exact same spot when I attempt to play Chapter 10 of Secrets of the Obscure.
My toon is even complaining about this same repeated crash at the same point. His last words before the crash is "I'm really getting tired of this." I redownloaded the game and saved 78,977,048 bytes of disk space with the new GW2.dat file. I even tried going from Nvidia to internal Intel graphics and still the same problem.