It shows that this was an experienced pilot. He knew what he was doing. But this also shows that even the best can make a mistake or have bad luck.
A blinding reflection at the wrong moment, a second of distraction, a radio call that got his attention? We will never know.
Many housewives clean vegetables almost daily. And rarely, but from time to time they cut in their finger. What can you say about something like this?
RIP and condolences to the family.