None of what he is saying is that valuable. All of these problems are something a hobbyist fpv drone pilot can share. Add to that, it’s quite old info. If the author didn’t get a chance to see fiber optic drones, they left the fray a long time ago in terms of advancement.
Assuming the writer and their allegiances are what they say, is any of the info valuable to any of their adversaries?
https://en.wikipedia.org/wiki/Loose_lips_sink_ships