Yup, phase 2 was just insane. You couldn't move anywhere. A trip to the bathroom literally took 30 minutes. Basically, you camped out in one area and enjoyed people watching until the fireworks started.
This year we switched to EPCOT so we could at least enjoy an alcoholic beverage while waiting it out lol
One of the members in that thread posted the criteria for each closing phase. Apparently Hollywood Studios came just as close to closing as well today. I don't think EPCOT ever could just because of it's insane size and Animal Kingdom, well, wishes it could hit phased closings lol.
EDIT: Just found the post. Here are the phases:
Phase 1: Guests with Magic Your Way base tickets, one day tickets, guests with no admission, and CMs using a main gate are turned around at the Auto Plaza.
Phase 2: Only resort guests, AP/PAP, Park Hoppers, guests re-entering the same park admitted, ONLY if using a taxi or resort transportation. (Auto Plaza is closed)
Phase 3: Only resort guests and AP/PAP admitted. (Only resort transportation)
Phase 4: Closed to all guests. (No incoming transportation)