Crab,
having just got off the phone, it would appear that lighting fit and lack of any height bugs are major issues.
This, coupled with the shortfalls you mention i think play a large part in the decision to stop night flying.
I agree also, that well done to the crews for saying enough is enough.
Lets just hope that those in position have learnt from this and DO NOT make the same mistake come 2012
Sante
Doc