Manchester City boss Pep Guardiola says "the big brains" never consulted people in the game with the new injury time rules, after his side conceded in the 101st minute of the Community Shield.
Cole Palmer gave City a 77th-minute lead but Leandro Trossard levelled late and Arsenal won on penalties.
English games will have more injury time this season to accurately reflect stoppages in play.
"It's a question for big brain guys who decide these things," said Guardiola.
The Spaniard added: "It's a lot of games and every time you add eight or 10 minutes it's a… but listen, they never consult our opinions, the people in world football, managers or players.