I agree that it feels like the ride needs an extra scene, though at the same time it doesn't feel like a scene is missing anywhere. Maybe there's just something intrinsically more satisfying about having shorter scenes but more of them. I also don't think it helps that the ratio of action scenes to calmer scenes (in terms of motion) is more balanced compared to Spidey/TF/FJ, which all favor action - perhaps making riders feel like they are getting more "value" out of the ride. Maybe Gringotts' speedier transitions (compared to those rides) are meant to make up for the relative lack of action in the screen-based scenes (freefall scene not withstanding), though for me it only makes the ride feel more stilted, alternating between kinetic, fast-paced transitions and scenes where the vehicle is completely stationary and riders are more or less waiting for something to happen. Rides like Spidey and Transformers move between low, medium, and high action, while Gringotts goes from high action to almost no action and back again until the ride ends, with little middle ground. But all that said, it's still my favorite complete experience even if isn't my favorite pure-ride experience. The queue and preshows are something else. The experience is cohesive and grounded from start to finish in a way that few rides are.