This is true, and we had this debate a little bit - disguising is not the same as hiding.
If you're trying to avoid any detection then you would also want to mask the sound, or else people will be hearing things in the sky and not seeing anything... until they start pointing low-light and infrared cameras at the sky. When that happens the vantablack drones are going to pop against the background and leave no doubt that there is something strange in the sky, since they def won't be looking/moving like bats.
By disguising as planes you blend in with the air traffic for most people, and create confusion and debate with anyone who does notice they are out of the ordinary (exactly what we're seeing now).
Another point is that lights on flying objects in the dark serve a purpose, and if these drones are coordinating with each other, they may be using the lights to maintain formations or avoid running into each other without relying on other communication channels that could give away more information.
If you're trying to avoid any detection then you would also want to mask the sound, or else people will be hearing things in the sky and not seeing anything... until they start pointing low-light and infrared cameras at the sky. When that happens the vantablack drones are going to pop against the background and leave no doubt that there is something strange in the sky, since they def won't be looking/moving like bats.
By disguising as planes you blend in with the air traffic for most people, and create confusion and debate with anyone who does notice they are out of the ordinary (exactly what we're seeing now).
Another point is that lights on flying objects in the dark serve a purpose, and if these drones are coordinating with each other, they may be using the lights to maintain formations or avoid running into each other without relying on other communication channels that could give away more information.