It's the advertisers who paid for ads to get played to the bot accounts, and (depending on how the advertising deals were structured) other artists with legitimate listeners might have received smaller revenue cuts.

Consider the opposite view: if pretending to be a human is "criminal behavior" there are about 8 billion criminals walking around on this planet.. and in this case our current legal system appears to be hijacked for the protection of utterly nonsensical, hopelessly broken, ancient business models from a rent-seeking, anti-consumer, creator-exploiting, trillion-dollar corporate mafia, which would like nothing better than to track, spy, and force-feed their audience at every turn.