For new players it's not always possible to find a ranked match right away. We didn't want to add bots to ranked because this is not why you queue for PvP. But we think we found a way to solve the core issue while keeping it a 100% optional.
When you queue for ranked as a Bronze or Silver player, if you don't find a match in about 1 minute you get an invite from a ranked bot. If you decline you will stay in the queue. If you accept you can rank up to Silver or Gold rank where it will be easier to find real matches!