And on the other hand much more aviation like, there are thousands of glider planes manufactured out of different fibre materials including aramid, polyamid and of course carbon. Very very few manufacturing related incidents or accidents, most stuff that happens is good old human factors stuff. Newer SEP planes like the Diamond Air series, or before that Grob trainers and more recently Cessna 300/400 and of course the Cirrus family. All of them built out of composite materials.
Composite is nothing new, in fact airplanes have been build in composite structure since the 1950iies. However it seems hard to transport the lessons learned onto newer commercial projects, including the 787.