I'm not aware of an abnormally high fail rate in 777 fleet. Training at this place has always been and will always be something you need to be prepared to do without guidance. Written guidance IS the guidance to follow. A good instructor doesn't convince his students he's right because he holds his position; he assists the students in learning the material within operational and practical context. That also means letting the students see you when you're wrong and letting the students model self corrections on the corrections you make, receive, etc. It's also inappropriate for students to expect someone simply by holding position to actually be infallible. It's healthy to check what's being said against written guidance and greater practical context, etc.
Unfortunatlely, getting positions and holding positions is based on reputation and networking. This makes the instructors and students alike brittle. Instructors need to be seen as experts in order hold onto their position and advance in the schoolhouse. Students have to treat their instructors as infallible experts in order to preserve their own promotion chances. The whole situation is counter productive, and it takes this realization to navigate the specific pitfalls.
I wont stress the 777 if I have to go there. I'll read the books, barf out the trivia, fly the profiles and ignore the noise. That'll get me through, and it will get anyone else through too.
AQP: We don't have it because we don't want it. All parties own this failure as both company and union have slowed the process at various points in its 10+ years of development. It's not coming. I feel for the instructors ordered to say "AQP Is coming, guys!". Whoever is directing them to keep this up has no appreciation for their own instructor's credibility.