Fans of New York City’s professional soccer team NYC FC should have been reveling, as their first-place team started the playoffs on Wednesday. But a number of supporters were miffed that the game was being played 10 miles from where it should be.

NYC FC plays its home games in the Bronx at Yankee Stadium, which it shares with the borough’s baseball team. With the Yankees playing into the postseason and having first rights to the field, the stadium wasn’t ready to host NYC FC’s home game against Toronto FC. Instead, the match...