A good many people would be Very Unhappy if they ever found out, which is why Anariel isn't telling all and sundry and very much does not want Ara read in.

Finno's probably somewhere in between? He's not as out of it as Aiko, and Moryo was only coming back to one son he hadn't seen since toddlerhood, not his mate's (adopted kidnap-)son he never met plus his wife (who happens to be Galadriel's daughter) and their four children... So Finno's happy to be alive, but also has some nerves going on about what his family thinks or even knows about him.