HI,
The reason that CRM wasn't applied in this crash was pretty simple: CRM was non exisitent in these days.
This crash is what started CRM, because out of this crash the conclussion was finally made that you have to operate as a team and not as sole individuals with a steep hierarchy.
Meanwhile CRM develloped through different stages/phases and if I remember well at the moment the CRM being trained is phase 5.....