The upper "hallways" of the well area in Welkin's Reach are considered within the instant death region despite being below it, requiring the Favor buff to survive it.
That area is "safe" from bound spawns (I'm not sure if always because of how RNG spawner devices can be), and a good place to put lodestones in case players don't know to drop all the way to the bottom and unlock the Zephyr point there before their Favor wears off.
The area should not be considered part of the instant death region because it is technically sheltered from and below that region.
