In my mind a easy solution.
The NOC has a met guy and should have some SMEs. If they become aware of a critical change in forecast weather then they send it to the RPT operators and ATC to ensure the message gets out. Might mean they have to put their coffee down but if all they do at the NOC is figure out traffic flows the night before then what's the point.
The NOC should be a hub for all critical information, not just traffic management. Might mean someone has to put some thought and money into it.
Of course an investigation like this probably should have looked at that...but that would have been another elephant. Covered the big issues like a pilot not prefixing his report with Airep...I do go on.