Unfortunately, hard disagree. There are input "fuzzing" methods, and I know because I saw them operating in person.

And that would still be in the realm of "robotic" behaviours. We're beyond that point. Hearthstone is a game where bots will do everything in their power to fake humanity, even display intentionally toxic behaviors, like using certain lines in certain scenarios specifically known to mean to aggravate you (hovering cards that will get lethal next turn back and forth followed by Priest's Hello) or even straight up roping.