AO is english (except rk3, let them do whatever they want) so there's no real need to add a bunch of localization and other useless crap. Yes it is useless because anyone that has a need for a bot has to know more than enough english to play the game.
It's a lot better to spend time and effort into something that'll benefit the entire community instead of a limited playerbase. I know of at least one "country" org that doesn't only have people from that country in it. They wouldn't understand a thing if the bot suddenly started using native language.