I think we already went through this two years ago or so. All the names connecting ZX to Zero are avoided in a deliberate manner (except Ragnarok, I think that's mentioned but my memories are foggy)
Model X,Z,H,P,L,F,W are never referred to explicitly contain the souls of X, Zero, Harpuia, Phantom, Leviathan, Fefnir and Weil. Sure they act like them, their Rock Ons look like them and have their attacks, they have the same voice actors, are described to have the same personality and the hints dropped about their origins match.
Same goes with the previous Guardian commander and Prairie.
Model A is just the most prominent case of this.
About the Raiders being Red Alert...well no, that would mean they somehow survived the several cataclysms between the sagas, and we already discussed the drawing on that gate several time.