This is a bit different. We still see a "Loading Protector's Enclave" in the top right corner. The thing your buddy experienced is that the game has already finished loading and has a "Press any key" in the top right corner.
I hate doing dungeons for all the reasons stated in this thread. I've not had this problem in any of the other MMOs I've played so I'm not sure why there so many <font color="orange">HAMSTER</font> in this one game.
Because, I mean there's no way they could be having trouble making it so that people can't repeat the exploit after they bring the AH back up or anything.......