I have made my views pretty clear about how much good can come from just plain trying to understand something or someone. We all make mistakes, we all screw up, and those mistakes are not the same from person to person. On the surface I might look at a big mess in someones elses life and go: "Man what were you thinking" but I would have very little understanding of the true situation.
You can read a book about someones life and never really get it all. For every word written there are thousands which are left unsaid, unknown, even to the closest of persons. My wife and I have been married almost 35 years and there are things she does not know about me, and she knows me better than anyone on earth.
I see nothing wrong in adding some understanding thoughts about someone who screws up big time-while being critical. You can say what you think was the problem-but you might have it 360% wrong. You can say what you might have done-but you can have it 360% wrong. His talent and charisma were unique-and so was the rest of his life as it played out. IMO Why it went as it did (No matter how many books we read or people we talk with) is just an educated guess.
I have never worn the much spoke of rose colored glasses-though I'm sure some will accuse me of it.