Never got banned because of Wrobot, only because Honorbuddy has made Blizzard hate bots. And I was using grinding, archeology, gathering, wrotation, automatron, pet battle and fisherbot.
But I must admit some points you did make are valid, especially the behavior of the bot and how it trys to deal with problems which occur very often.
Anyway, you shouldnt bot battlegrounds because that is a guaranteed way to get banned.