At the outset, let me reiterate that I do not care for Major League Baseball’s replay reviews. I understand the desire to get it right, and if there is a way to do it easily, do it. But humans make mistakes, and mistakes are a part of the game.

Pitchers make mistakes, and the baseballs they throw to batters wind up in the stands. Pitchers don’t get do-overs. They have to live with their mistakes.

How many times have you heard a pitcher say in a post-game interview “I only made one mistake,” but the batter hit the mistake for a home run, and it cost the pitcher’s team the game?

I raise the issue of mistakes because Angel Hernandez, a major league umpire for 27 years, has been awash in criticism as a result of his work in the division series of the M.L.B. playoff series between the Red Sox and the Yankees. That he had previously sued M.L.B. for racial discrimination has not made him less visible. Joe Torre, a former World Series-winning and Hall of Fame manager, who is M.L.B.’s chief baseball officer, is a prominent figure in the July 2017 lawsuit. He did not return a call seeking comment.

Hernandez, a 57-year-old Cuban native, has been a major league umpire for 27 years. In that time he has been one of baseball’s most frequently criticized umpires. In the recent playoff series between the Red Sox and the Yankees, he had three calls overturned by replay review.

A TBS television analyst and a Hall of Fame pitcher, Pedro Martinez said of Hernandez, “Angel was horrible. Don’t get me going on Angel now. Major League Baseball needs to do something about Angel. It doesn’t matter how many times he sues Major League Baseball. He’s as bad as there is.”

CC Sabathia, who pitched and lost the final game of the division series, was particularly unhappy about Hernandez’s work in that game, said, “I need to say this. I don’t think Angel Hernandez should be umping playoff games. He’s absolutely terrible. He was terrible behind the plate today. He was terrible at first base. It’s amazing how he’s getting a job umpiring in these playoff games.”

When Sabathia was asked if Hernandez had been inconsistent, he said, “Always. He’s bad. I don’t understand why he’s doing these games.”

M.L.B. records, however, show a different story. In the season just concluded, plays on the field underwent 1,400 reviews.

Two-hundred-seventy-one were confirmed as being correct. There were 450 “stands,” presumably meaning the plays stood as called because there wasn’t enough evidence to overturn them. The rule-of-thumb has always been if the replay isn’t clear-cut enough to change the call, you let the original call stand.

[Correction: The data below has been updated following the initial publication of this column]

Of the 1,400 plays reviewed this year 666 calls were overturned. Those figures mean that someone besides Hernandez was getting calls wrong. In fact, a study of the 1,400 reviews shows 40 other umpires having more or as many calls reviewed as Hernandez and 32 other umpires having as many or more calls overturned as Hernandez.

The plays reviewed do not include calls of balls and strikes. M.L.B. has other ways they judge umpires’ pitch calls.