The thread is drifting towards the valueless conclusion of 'human error'; whereas the real threat to the industry is the continuing number of 'organisational' accidents and those outside the current technical categorisation*, unexplained disappearance, terrorist action, or local war.
Although the industry might be enjoying the lowest 'technical' accident rate for a number of years, the public perception, often biased by tabloid news, may drift towards the notion of aviation still having significant risk. Many of these risks appear to beyond regulatory control, or put aside as not fitting the accident data category which safety activity might address.
The most significant threat to the industry is changing public perception, they provide the pay cheque. If we continue to promote the idea of 'human error', then the danger is a call to eliminate the human from the process, then what for a career in commercial aviation. Cf, the interest in autonomus cars, 'drones', irrespective of feasibility, practicality.
Lessons for the industry: - the continuing need for professionalism, (crew, operator, and regulatory organisation), expertise, planning, communication.
* e.g. Boeing accident summary.