Hi there!
Bots are used to fill up ranks when the matchmaker cannot find enough human players within the designated waiting time. It's true that they are usually not as proficient as human players, which is why we have made sure players and bots are always evenly spread across teams. This means that even if you have a bot in your team, so does your opponent's team, and if you have two, so do they. We believe this is an effective way to maintain balance. Nonetheless, I have forwarded your feedback to our dev team to make sure it is heard!
Kind regards,
Solkrin