I'm anti-DLC, but if it's free at first, then whatever, I'm fine with it.
But it still makes no sense for a strategy game. How are you supposed to balance a game when you can recruit an extra 120 characters via SpotPass, unless they're all mediocre?
Maybe this works for an RPG where gameplay is second to story, but Fire Emblem is always gameplay first in my view. Is the game balanced to have one extra powerful character? Should I keep this in mind when choosing my difficulty? Or is using Marth like a cheat mode? Or does he suck, at which point... why bother?
It's because the game is balanced around weapons/classes. It's not balanced around individual characters.