Honestly, one of the things I liked about being able to see the direct path in games like Mass Effect 3 or Bioshock Infinite was that I could tell where not to go. It's that whole RPG mindset of "The path on the right continues the story, the path on the left is something different - let's take the path on the left."
Plus it'll be convenient for me on the first playthrough if I ever do need a little direction, which doesn't happen often in Bethesda games post-Morrowind. Maybe it'll be more desirable in this game, though - I did always feel like Fallout's locations were better than TES at being nonlinear. Plus, if it's really like the Clairvoyance spell in Skyrim, it uses the same logic as NPC pathfinding, which can be handy sometimes.
All in all it's probably a perk I'll enjoy, at least the first time I play the game.