I haven't encountered that but most of the time you're running through narrow corridors anyway.
For me, corridors are okay, because that makes sense - you can't walk through a wall, so you can't progress that way. On the other hand, wandering around an open-looking environment only to have "YOU ARE LEAVING THE COMBAT ZONE" pop up at some arbitrary point is a huge affront to me.
I didn't mean literal corridors, even if there are some of them.
What I was trying to say was, most of the time something (walls, debris, mountains, trees, invisible walls) is blocking the way on both sides, like a corridor.
For example: There are two trees and it looks like you could walk between them but an invisible wall blocks your path. Or if there is a small cliff and you want to drop down to use a shortcut, most of the time it's impossible because the invisible walls won't let you pass.