As a layman, reading the report, it just confirms how fiendishly complicated these aircraft are, and how many things there are to go wrong. The fact that they rarely do is a tribute to the engineers.
Yes, they are fiendishly complex, but as an Engineer, I am embarrassed that some poor sod forgot to secure a panel in the fuel cell, and left the screws hanging there in a parts bag! We are paid to ensure things like this do not happen. This easily could have had a horrible ending.