Cool, but will it reflect microwaves at 12-13 GHz?
It's funny, I was watching "How William Shatner Changed the World" (really, I'd say it much more Star Trek, and Shatner, not so much, but hey, he has more money than I, so what do I know?) on The History Channel tonight and then I read about this. So, I wonder which came first: Scotty's transparent aluminum, or AlOxNy?
I don't think they're using ALON™ for the satellite dish. Assuming a DBS dish is 300 sq in and the prices I've seen of between $10-15 per square inch for ALON™, that would make for a very expensive means to hide the dish. They're probably using a thin metal film on Lexan (or some other transparent plastic) to reflect the signal.
The test for this antenna would be to see how well it performs over time under higher ultraviolet exposure from "southern" locations.
Florida, Arizona, and Southern California would be good places to test this question. My past experience with light colored objects in areas with concentrated sunshine has not been good. For example, compare the longevity of a white cable tie with a black one.
White ties crumble in a few months of outdoor exposure, while dark colored cable ties seem to last longer. Ultraviolet rays are the culprit, and unless your materials have been designed to deal with them, the shape of an antenna may very well lose its shape over time.