Yes and no. I agree that there is much given up in that article. The same holds true for us. We are an airliner that puts weapons on for all intents and purposes wrt how we navigate and operate. There are some good things done on the high side to mitigate our imprint but websites like flight aware really hit us in the gut. I'm no SME on this stuff of course but I don't see how my iPad with a GPS puck is any worse than my civil nav gps, flight plan, radar contact, and adsb out transponder. We incur all the cons of that adsb with no "in" capability for real time weather and other admin stuff.