now we have human error and situational awareness. PH6 your thoughts on the pilot's situational awareness are based on hindsight, unfortunately we will never know what the factors involved in Capt Collins situational awareness were, we will only know the results of his decisions not his awareness of the environment that he was operating in.
As for "pilot" or Human error, again that is a construct of Hindsight. We also know that several times in past flights, pilots were doing similar actions as Capt Collins. I know that every flight was different however, they were doing similar things and it would be interesting to discuss what they based their environmental awareness on. By the thought process on pilot error, they must also have been committing pilot error but did not come to grief.