Currently it’s possible to get stuck in places because a thrall or pet ends up boxing you in. In some cases the area is big enough to get them to move, or its possible to climb, even tell them to “move and guard”.
Other times you’re boned, mostly in dungeons, although it is possible in other places. Not forgetting some bigger enemies that we can get stuck in as well.
If we could roll though entities/mobs/ai (whatever we refer to them as) it would negate this problem entirely. It would also allow us a bit more freedom in combat, being able to maneuver behind enemies easier.