I remembered something else : on that same run, i met Warlord who acted as if i was "the zionite chosen one".
Yeah that's intended. Once you were imprinted it still affects your system permanently and other bots can tell. We can say that news traveled fast, but anything after that has not necessarily reached other areas yet.
At least that's the potential logical side; the gameplay balance side is that you aren't allowed to double up on the potential benefits there.
By the way, i would suggest adding something to Warlord's "imprinted" dialogue to clarify
I don't think there's really a good way to add that information in there. It would feel out of place when he doesn't really care much for you in that case--no reason to divulge extra details.