i'm guessing not. this is sport climbing.. not aid climbing
I trad practically only. So, when I back clean, it is in trad. In Accident in north American mountaineering, we saw more accident of this kind with dramatic ending.
For a trad climber, it is the level of a beginner not to trust just on one bolt. I'm guessing that the climber think that he was good and it is just bad luck. But when we learn safety before hard move it is pure ignorance, not an accident. I notice that kind of climber in recompense who anchor himself with just one biner and did dangerous move in the crux. We have more accident of that kind because there is more people with a sport climb background who just imitate without understanding what look like an evidence...reducing rope drag.
As I went to climb 5.11 next year...I have to try hard move.