It sounds like the same policy guildwars 2 has:
https://forum-en.guildwars2.com/foru...st#post1532762


  1. And as stated above, you may not program your keyboard to perform functions on more than one account at a time.
    a. For example, if you press W on your keyboard to move forward, a single character on a single account should move forward. The keystroke or mouse click should not perform functions on more than one account.