5 days to go is an eternity for a system like this. GFS at 6z was also NW by a good bit.
For our area we just need a couple of things to happen. The High position is off allowing for the primary to drive further North. The system isn’t as wrapped up allowing for a larger moisture field.
The Euro at 12z had about .4 LE of snow for Binghamton - 0z had 1” plus and there are DAYS to sort this out
Having done this for 30+ years I know well enough to not give up! Are the odds against us now? Sure. But modeled snow is just that...
FWIW - I also lived the first 39 years of my life in NJ/PA near 95, so I know heartbreak with storms like this as well as most!
EDIT while a terrible model the 6z ICON shows what’s still possible and how it could happen. Run a low inside NJ that’s less consolidated than the Euro and we see many inches of powder. (2nd image)