After watching the cartoon version with Jim Carrey today it occurs to me that a chronological exploration of Scrooge's life isnt particularly dramatic. It just follows the same progression he's already lived through and lets him know he'll die unloved and alone-something he probably already knows and expects even if he doesn't like it. No real revelation there.
But, if you start with Future and work backwards (I think that was what Jim's podcast said) then the spirits start out declaring that Scrooge will die friendless and alone-a much more startling declaration without the context-and then explains to Scrooge why he'll die that way leaving him to contemplate whether he wants that ending. that seems much more dramatic and effective.
That still doesn't explain why that path doesn't work from a Dramatica point, though. It only explains it for this story. But that feels like a start.