Salad Dodger
I will try and explain my clinical stupidity.
"By chance," if you believe that the pilot was fully in control of his aircraft and chose to impact a busy road rather then an adjacent empty field, then we will have to disagree.
On a general theme I believe in my stupid opinion, however harsh you may think,, life can never be 100% safe. Whether by technical or human error accidents will always happen. You can improve procedures, charge huge amounts of money in the process, but unless you ban the activity you cannot eliminate risk.
And as a former display pilot, if I ever thought, that unless I was reckless or grossly negligent I would be routinely prosecuted for making a mistake, I would never have been involved.