Why not test it on earth?
So this material is transparent but insulates like styrofoam - with which it shares the property of being mostly hollow. Why not build insulating windows with it and prove its usefulness on earth?
Mars is very far away and, despite all the hype, I don't believe that we'll see humans on Mars within our lifetime. Living on Mars is not much easier than living on the moon - no breathable air, no fossil energy sources, lots of unhealthy radiation, and not a living thing to share your misery with. So while a use of aerogel on Mars makes for nice headlines, it just tells me that nobody found any real-life useful application for this material yet.