I think there are some parallels to be drawn with a common critique about World of Warcraft which currently has a level scaling feature so that all enemies are the same level as you, more or less. If you can't grow to out-level and overpower enemies, and go back to reflect on your growth, then growth becomes meaningless. Or at least feels less impactful. So I appreciate the dream of being able to return / travel in reverse in that sense, as it amplifies that RPG sense of growth and progress as a character. That'd be the argument I'd pitch anyway, if I was trying to convince someone.
