Technically it should be the 25th perfect game in MLB history.
Wow! If there’s ever an umpire’s decision that should be reversed after the game, that’s it.
If I were Commissioner, I would overturn that call.
There is another game sometimes listed, from the early 1900s. Babe Ruth was the starting pitcher and walked a batter, then was thrown out of the game (must have been for disputing the umpire's call that the pitch was a ball). The runner was thrown out trying to steal second and the pitcher who replaced Ruth was perfect for the rest of the game.
Jim Bunning pitched a perfect game in 1964--he was later a Republican senator from Kentucky.