yeah i was thinking that too but its a common name style, plenty of things have used it before and i figured that, it's more likely going to be refered to by its acronym, Elysians are rarely referred to as archangels from what i've seen in rp but im not doubting you because i have seen it, not to mention one is a race the other is a tech.
like you said it's up to other mods but just looking at it from the perspective of when that name will be used, i doubt it will confuse anyone for the birbs, mostly cause everyone calls them birbs anyway XD