It sounds to me like they're charging to go to places you otherwise would have to work through in the game. Like if Bioware offered to bring your character to the Underdark in BG2 for a few bucks. You'd get there even if you didn't pay but it eliminates the hassle of, you know, playing the game. That is assuming that the areas in question aren't DLC. It's not entirely clear from the quote.
If they aren't, that tells us 3 things about Molyneux and Fable 3, things that we should already know, really.
1. The narrative is an optional framing device for the game experience. Fable 3 is either sandbox or episodic in its setup.
2. The game design abhors difficulty in all its forms (duh)
3. Giving players instant gratification is important.
I'd wager that these are the reasons why Fable is the most popular RPG franchise ever created (I think?) but then, I'm also pretty sure the National Enquirer gets better circulation than the Economist.