Nobody was surveyed it was a reaction to the posters here jumping up and down wanting changes. Now the same ones are jumping up and down again. It went so far as to hope the competition even went with the battery pack.
I'll take your word for it, I was out of the scanning loop and haven't been to this forum for years until fairly recently. I have no idea of what you say is 100% accurate, I have a hard time believing that they make design choices of their products from monitoring forums, and I don't know who was yelping for integral packs who now are yelping for AA's.
I can see the point about power requirements, I can also see the point about convenience with AA's. I personally would like AA packs for airshows, guess I'll have to either pony up for another batt [unlikely because airshows are about the only time I would use an extra], lug a power pack along with me or simply get another mil air handheld just for airshows.
Designing one would be simple for uniden, I think they'd be a good little money maker if they offered the option - So lets see if they actually do monitor this forum and take requests to heart.