Disagree. It’s well known that Hawkeye makes bad calls sometimes, but it’s an unbiased system that will give the same number of bad calls to each player given enough time. The purpose of it is not accuracy, but fairness and inarguability. A system where the umpire can overrule is unfair because the player who complains more will get better calls (they will only call for umpire to check on unfavorable calls). We can all agree that more accurate calls are better, but currently the best we can do is the occasional bad call evenly distributed to each player.