Like Fearthis said, using a program like isboxer is a legitimate way to play this game, as well as many other MMOs out there. There is no unattended gameplay happening in these setups. GM's have verified this many times over the years. As long as the player is at the computer, inputing the commands, it is completely legal.
Key broadcasts are allowed, so you can have the same spell/ability go off on all instances of the game.
Things you can't do are automating gameplay. As in you can't just press '1', and let a combo/spell rotation execute while you sit back and watch or go afk.
The behavior shown in the screenshots is probably just a person multiboxing, and as long as that person can respond to a GM's tells on any of those accounts to prove they are present at the keyboard, everything should be fine.