This is not about casting blame, nor is it necessary about pin-pointing exactly the cause.
It's about learning from a terrible tragedy and trying to evolve in the right direction as the aviation community. Their families and colleagues would expect no less
In order to learn do we not have to first understand what happened and to do that we have to figure out the causes that led to the tragedy?
Every single one of us could wind up as the topic of discussion in a Thread such as this one..... as long as we go flying....that is the first thing we have to accept.
If you don't get that....then you must get yourself a copy of Ernie Gann's "Fate is the Hunter" and read it very carefully and contemplate what he talks about in that Classic.
“Anyone can do the job when things are going right. In this business we play for keeps.”
Ernest Gann "Fate is the Hunter"