Actually it IS great. It means the cars will be coming out BETTER, instead of FASTER.
There is zero way to know that without knowing what the shutdown is for.
If the shutdown is for production tweaks then you are probably right. If the shutdown is due to parts shortages then notsomuch.
Could also be both.
No - apparently the car is built after assigning the VIN.
In another thread there is this timeline
2 days to build the car
2 days for QC
In all these cases the VIN has been assigned to the car. Afterall they punch/stick the VIN in some places on the car.Plus there are numerous examples of people getting assigned VINs of cars already built that match their config.