https://us.forums.blizzard.com/en/wow/t/what-is-botting/74401/3?u=vever-frostwolf
from a Blue post in one of the first google threads about botting. What they used to say before was “Multiboxing is not botting, because it’s 1 keypress for 1 action. Just across multiple different clients.”.
From what I’ve gathered, that exception is what they’re removing. which means key broadcasting with hardware will still be considered an actionable offense.