The one distinction I'd have to make about Jersey Week is the way it's described. "Crowds were light" or "crowds were manageable" or "crowds weren't bad".
That's the point - THERE WERE CROWDS. Of course not as bad as summer or Christmas week or Easter/Spring Break but crowds none the less. If you're like me and go at off times and are used to NO CROWDS, NO LINES then you will be shocked at the number of people in the parks from the middle of October through the middle of November.
You have golf tournaments,
MNSSHP/Halloween, Food & Wine Festival, British school vacations, Jersey schools vacation, a few other states' school vacation, Super Soap weekend, foreign tour groups, etc.