Honestly though, the GBA FE games have already made that "feel" I have for the FE franchise. The way the AMAZING game FE7x is going about it... I don't really like it... because of the established "non-extensive cursing" environment FE has been expressed to me as.
The features are pretty cool anyway... not a fan of the minced up story, the dialogue, or the harsh fake difficulty, but the features are pretty cool :X
There's no way I'm not playing that thing when it gets released though. It's too GOOD. I'll just have to suck it up.
The only thing I care about is theming. If the game sets a theme of "Characters don't curse" and a fan game says "I'm true to the original" but the characters do curse, then it's breaking the theme, and I dislike that.
A single profanity does not necessarily have excessive impact in America. To some, it does; to others, it loses too much impact. Changing it to a "lesser" swear is sacrificing meaning for the sake of censorship and should be avoided.
Incidentally, I hold no opinion on the Alan thing, I never played FE6 but I'd assume a similar dialogue vein to FE7. And "Damn it" is a perfectly acceptable and sensible translation in the theme of the FE6/FE7/FE8 dialogues, therefore that translation would make the most sense to me.