They left out the key part which was incorrect and the sentence right after "If you can't do it with a traditional computer, it suddenly becomes difficult to ve

They left out the key part which was incorrect and the sentence right after "If you can't do it with a traditional computer, it suddenly becomes difficult to verify correctness" The point stands that for actually interesting problems verifying correctness of the results is trivial. I don't know if "adherence to instructions" transudates at all to quantum computing.