The greatest part about the water bottle ordeal isn't the message that it has sent to us.
It is this fact that I think has been overlooked: that the world now, at the very least, suspects (but likely knows) that it was a "secret" signal.
They'll now wonder if there were anymore.
The shadow of the rabbit hole was just shown to the world.
It makes sense. I'm sensing a lot of newer people here. Perhaps maybe not all of them are brand new. Some of them left earlier and then realized it was all real when they saw the water bottles.