[Archonsod]

I wouldn't say it's a concious decision, or necessarily a bad one. After all, the functionality is there (as in, moving and renaming files yourself), it's more a matter of polish (as in, it's not automated or presented within the game).
It's not the only rough edge the game has either. Much as I love additional content and similar fun stuff, I do wonder if perhaps the actual presentation is being over ignored.