I am guessing that Flights of Passage is a tougher one to make work than Pirates, but it could be really cool if done right. They can't just take your picture though. If you're sitting off to the side, you can see how the theater is laid out. It's just a lot of rows of people sitting in dark rows on ugly 16-people platforms, not very attractive looking. They'd have to figure out how to position a camera and flash so that it doesn't interfere with the movie. Then use some computer graphics like they do with some other ride photos, but on steroids. Maybe make each one a solo picture. Drop in a spectacular background behind each person, and insert a majestic, soaring banshee under them. It would be entirely a composed shot.
The only other thing that's not great about the photo is that each person would be wearing a pair of 3D glasses. Also, for those purists, this whole idea contradicts the plot of the attraction, which is that your avatar is riding the banshee, not you in goggles. But that's a minor point. Who knows? I'm sure they've thought about it and decided for some reason it would not be available (at least not at launch).
