@stb155 : very good points .
Only one example to add to your points , the runway excursions . They are on the rise and becoming the top safety issue in the last years, 2017 included . The fact that they do not produce many ( or no) fatalities brings the notion of luck in many cases. ( one has to look at the pictures of the Pegasus 737 last week to prove my point )
We should not rely on these optimistic statistics to rejoice ourselves as some suggest it.