It wasn't just the first party. A few of the early parties also did not adequately remove non party guests. So many people complained that they were unable to see/enjoy the main features (parade, Hocus Pocus show, etc.) that refunds were issued. Once it affected the bottom line, a They started enforcing, so the later parties were well enforced and guests without a wristband were not allowed to stay. I think they learned a lot, and I would be very surprised if they don't monitor really well these year's parties.