The bias here is absolutely hilarious. You say that queens are OP because zergs can make multiples of them? Just how plastered are you? If the queen were OP, you’d only have to make 1 - just like the BC.
You can cry when a zerg makes 1 queen, teleports it across the map, and kills a terran player who has turtled up with TWICE the resources invested into defense than the queen cost. That’s what the BC does. The worst case scenario is that the Terran is doesn’t outright win the game but goes into the mid game with complete and total map control and being totally impervious to all pre-spire aggression.