Does this show even have the budget for Fillory?
I touched on this in another post where I said I was disappointed by how they'd changed FX heavy characters like Reynard, The Beast and Ember.
Aside from a few scenes, it doesn't appear so. You can tell by how many scenes take place on old sets (hey, The Beasts lair is the child molester's study!), featureless chambers (like Ember's jizz shack), near invisible castles (!), etc.
I think this show works in an urban setting but just doesn't have the FX budget required to bring a Narnia-style world to life.
Due to the lack of moderators, trolls can ruin the IMDB message boards. Don't feed them.