I can actually explain that, but to do so you'll have to forgive me that I can't substantiate any of this. And since some of this comes from very early on, if I go into much detail it's pretty easy to track who was talking too much.
When the Star Wars expansion was originally conceived, and I believe this goes all the way until about mid 2014, some of the early concepts for how the land could work is that it would be an homage to all nine films... at the time, the prequels, the original, and the upcoming trilogy which WDI only had limited information about The Force Awakens. Now that all changed in early 2015 when Lucasfilm Story Group became heavily involved in developing a story around the land and requiring that it have a definite point in time that it would exist (although I believe there was some compromise made in that the land was made in such a way it could be changed later). Anyway, one of the early concepts that would have been incredible, but which was scrapped due to Lucasfilm involvement, was that the land was going to have a pod racing simulator. The way it worked was that during the queue, guests would design their pod racer engines a la test track. They would then watch videos on the history of pod racing, get a tutorial on the controls (they operated like a zero-turn lawn mower although turning in reverse was not allowed), and finally they would board a two-seater pod racer craft. One person was the pilot, one person was an engineer -- the engineer was in charge of "repairing" damage, helping build up boost power to the pilot, etc. Once you sat down in the pod vehicle, it appeared that you were in a rusted out hangar, and then the pod was pulled via a metal arm along a track through the hangar door. Beyond the hangar door was a 12 foot diamater horizontal dome 8K screen. This screen would have used proprietary 3D technology James Cameron's company had worked on in the past to create a 3D image without glasses by identifying where the pilot and engineer's eyes are and using limited head tracking technology. Anyway, you got to race against the group that you watched the pre-show videos with, which hadn't been determined, but likely would have been something like 16 pod racers for up to 32 guests.
When it was determined that the expansion would only focus on the sequel trilogy, the pod racer concept was scrapped. However, it was reiterated into a Millenium Falcon ride. Originally, the Millenium Falcon would have been the location for a meet and greet with Chewbacca, C3PO, R2D2, and an undetermined face actor. But with the determination that the Falcon would never be destroyed in any film, it was decided to move the idea of differentiated roles and a simulator video game to the Millenium Falcon cockpit. The problem was, there was no evidence in any of the films that there were more than two roles in the Falcon cockpit, so they did what was necessary to get the gunner and engineer ideas in, even though they weren't canonically correct. Unfortunately, to do a video game simulator well, it would have variable intensity depending on how the simulator is piloted. So, to make sure as many people could ride as possible, they kept the ride on a rail system within the "game" and they introduced a bit of delay between inputs and on-screen effects so that they could mask that the ride will never allow the pilots to go to far with nausea-inducing maneuvers.
