Since the ET302 crew failure started before MCAS was involved, it's not a simply a problem of failing to have a clear picture of a technical memo.
Fair comment, though there was plenty of time after MCAS played a role, for the mental chaos to become all-consuming.
I've long wondered if the power was left high because of being in a bewildered state, or if they imagined pulling the power back would exacerbate the pitch problem.