M R,
My less than overt point is that we often think that others know what is mean and understood. So as much as you might think (assume) that I will know something, might the crew have believed that many of the issues now identified with hindsight were acceptable to their way of thinking at that time.
The difficult task now is in unraveling why there should have been such a difference and what we can learn from this.
Opposed to declaring that the apparent failure to heed warnings and alerts is unbelievable (our way of thinking), we should reconsider that hearing is the first sense to degrade with increasing workload, together with the issues of fixation etc, as discussed the report (HF 2.3.1.), and that with many complacent historical items, all combined at an inopportune time.
Why should such contributions exist, and why was the combination so critical at that time. What might we do about these.