Typical rule for dealer double-burn mistake?

This is a stupid rule. So long as a double-burn has revealed no information about the cards in the stub, it shouldn't matter--play on. Yes, it is true that as a deterministic question, the future turn and river cards have been "changed" from what they would have been but-for the double burn, but who cares? The error advantages no player. Rules like this are for tards who get bent out of shape requesting new setups, etc.