What? Have we even been playing the same series? The 3D games generally provide pretty immersive experiences. Sometimes there are things that can shatter the illusion but overall quite immersive.
It makes no sense for the door to be locked in the first place and the key to be in a chest. Ghirahim can teleport in but Zelda and impa had no way to get in.
As for Zant. If he wanted to lock himself in he would have kept the key and not put it in an accessible location outside the door he...
I think a believable world is the key to immersing the player which is why SS kind of sucked in that regard. Its overworld was unbelievable even within its own game world due to the puzzles everywhere. Overworlds in my opinion should be places the player is free to explore and enjoy not to...