Another interesting thing I tested was using Misty Step as an alternative to lock picking doors (or gates) you can see through.

Dror Ragzlin has a trophy room that is behind a locked door. The door is just made of bars so you can see through to the other side. The game indicates that it does not want me to Misty Step in there when it tells me the location is out of sight or unreachable (I forget the exact phrasing). I managed to do it in a very specific spot immediately on the other side of the door, however.

Is Misty Step a teleportation spell? Can it not send a body behind a door like that?

Would my use of it not be allowed in PnP?