That’s disappointing. Maybe I’ll have more context once I get there, but why not let Finnean stay in the same form he was in when you complete the quest, or give you a choice once the quest is finished?
Also, did I miss where it was mentioned that Finnean can only take the form of a weapon once and then it can’t be re-used? I was a little annoyed when I discovered that as I had changed his form when the party member who wielded him went on hiatus only to find that I couldn’t change him back? Not a big deal now that I have access to better weapons but at the time it sucked!