Ok, the story I heard was after F&F:S opened in Hollywood UC started to become concerned about Orlando version. They looked at ways to plus it, but were too far in to change it that drastically. Then after Fallon opened, they knew they were headed into a dumpster fire. So instead of plussing it, they cut their losses and the budget. Killed the 3d because people hate it and it's expensive. And they killed the AA drivers and basically used mannequins.