I think there are sufficient redundancies to remove such anomalies, but the author is suggesting that the great prowess of this new system might be the reason that some black niche of the government might want to test its most outrageous new equipment.
The newest and the best radar against the newest and best aircraft/drones.
That’s Occam’s Razor answer in my opinion.
While I don’t disagree that somewhere in this vast universe sentient life may exist elsewhere, I do not believe it exists AND is HERE watching us.
As far as advanced intelligent life goes, if they did not want to be seen, they wouldn’t. Now, if they just didn’t give an Adam Schitt, and we were ants compared to their humans, I think we’d see them far more often, and to such a degree we’d all know our helpless state. We’re not THAT stupid and primitive. If they want us to only suspect they exist, but never prove it—well, why?
Ok, everyone use your grown up brains to think about it. Don’t emote. Use straight logic. The more you know about science and nature, the better.