I spoke with my friend this weekend who has really close ties with people at Great Adventure and he frequents the park multiple times per year and attends all the media events, gets on TV, etc. Here's a few snippets of what he told me:
1 - they still draw the same type of crowd demographic, nothing has changed on that front
2 - the changes that Snyder/Shapiro have made have caused havoc in the park. Morale is at an all time low. SF corporate has people who know nothing about the amusement park business trying to fix problems overnight. All they see is debt mounting all over the place, so they CUT everywhere, hence STAFFING is a huge issue this year, moreso than any year. (ride ops, security, etc.)
3 - the park had a new GM who was fired after 2 1/2 months after asking to do the impossible and turn all the problems around overnight.
4 - ride ops are not kept as teams on a specific ride, so they rarely get efficient at cycling guests through.
5 - alot of management with tenure has been let go, so lower level employees don't feel the need to work hard if they are going to get let go at the drop of a hat.
6 - they still don't pay the employees enough, so again staffing is an issue.
So in the short term it appears that things have gotten worse before they can get better, which seems to happen with alot of companies these days. And some of it makes sense, some of it doesn't.