I like that my "knockback" as a scoundrel is so minimal that at least half of the time that I knock someone off a ledge, when they stand up they teleport back up to the ledge because they didn't actually fall. My choices are to jump down after them and hope I can kill them before they teleport, hope they're actually down and not still on the ledge, or stand on the ledge hitting my dinky ranged attack while waiting for the stun to end.