If people payed attention to the significance of the Lifa Tree in the game, it makes more sense.

Yeah, and if people realized the significance of Mi'ihen in the game, it makes more sense too

But you have to realize that someone's first impression of a name as a new member is important to. For example, notwithstanding how sensible the name... say... 'The Penguin Harem' is when you know its significance in game, if someone new comes in who's never played any Final Fantasy and is like... "What the crap? Penguin Harem?" and they just think this place is messed up and they leave... Well, then

That's rather important. So the whole thing about whichever name is better isn't really solely based on whichever one makes more sense, determined from their in-game identities XD