My point was Keyclone just sends a keystroke to 1 window, and only 1 at a time. I'm 100% sure Bliiz wouldn't mind this because they want you to be in control, and you are!
It's the same as going to the store and buying 5 PC's and a manual switch for your keyboard, sending key inputs to each PC manually. Again, Blizz does not see this as automation, because WoW / whatever they use to check you on bot programs, can't tell if the key stroke was send to any other WoW's or not.

See it like this: I have 5 WoWs running, so how's Blizz gonna tell I use KeyClone + Round Robin or I just went with my mouse to a different WoW screen and clicked the button myself.. It's the same so it's perfectly legal ..