It does not necessarily mean that. Prophecies, I have found, are often both surprisingly literal, at times, as well as deliberately obtuse. The Last Dragonborn is clearly Alexis here, but we do not know if we are the Phantoms, or not. There are others here before us, and others still remaining. It is possible that this is something that happened already and we are witness to the aftermath.
no subject
It does not necessarily mean that. Prophecies, I have found, are often both surprisingly literal, at times, as well as deliberately obtuse. The Last Dragonborn is clearly Alexis here, but we do not know if we are the Phantoms, or not. There are others here before us, and others still remaining. It is possible that this is something that happened already and we are witness to the aftermath.