This means that the interviewer is just as eager to find evidence for a positive score as a negative one -- there isn't an incentive to "getcha" with cheap or tricky questions.
This is only true if the interviewer is uninterested in what happens after the hiring process. If they want to make sure they're winning a reputation doing great interviews for more good hires than bad hires then there's an incentive to be cautious, and that caution could well manifest as trying to catch out anyone who might be 'gaming' the interview process. Those false positives reflect badly on the interviewer; the false negatives don't because they might have been real negatives.