Agreed, that they need a better way to funnel people out of the amphitheater, but not out into the parking lot. They wouldn't make them go out into the parking lot, not only because they want them to go through the gift shops as DanBoris said (I understand their reasoning, having worked at my local amusement park), but also because that would ruin some of the magic for younger kids. I've been on the Keys to the Kingdom Tour and I learned that Disney is all about preserving the magic in all their parks (MK more so). Looking at it that way, funneling people out to the parking lot seems kind of rude to me.