I'm a little confused, let me see if I understood.
Archetype-Earth is not Arcueid before consuming blood (time that the Roa knew her)
It is not also the "usual" Arcueid that we know
And it's also not, essentially Crimson Moon in fact
To what I understood Archetype: Earth is a part of the Arcueid Conscience that follows the ideologies and ideas of Crimson Moon, but it's not really him.
This is it?