LONDON—Mikel Arteta changed the game three times with his substitutions, Martin Ødegaard came off the bench to wonderfully create the goal which Leandro Trossard scored to win Sunday’s match, yet Arsenal’s 1–0 win over West Ham United will forever be defined by referee Chris Kavanagh and his video assistant Darren England. Alan Gunn, the referee for the 1990 FA Cup final, insisted: “We are stage managers, not performers.” Unfortunately for everyone involved—including the figures in black themselves—they assumed center stage at the London Stadium. Callum Wilson’s stoppage-time equalizer to dent Arsenal ’s title challenge and reignite West Ham’s bid for survival was ruled out for what the referees deemed to have been a foul from Pablo on David Raya. It’s not quite clear why VAR focused on the stray arm from the forward on the goalkeeper rather than the myriad of other potential offenses simultaneously committed by both sets of players during the familiar melee at corner kicks in the modern Premier League.…