What you think are bots are usually multiboxers. I've seen them time and time again trying to auto follow, for example (I love it because I take them and jump off a rock about 4x and they die). I warn them the next time they will die, it's a fun side game. Can't rack up honor dead.
You can't move them all at one time without the means to do so, it has to be part of the game. Any other way Blizzard can see it's a clear exploit and ban them.