Inter won 3-2 on Saturday night, with Juve being left furious over the two yellow cards received by Kalulu.
Speaking to DAZN, instead of Juventus coach Spalletti, it was the Bianconeri executives Damien Comolli and Giorgio Chiellini who spoke out to criticize the referee's decision.
"What happened is unacceptable. There is a protocol that is not right, a system that does not work. We have reached a point of no return and I think that is clear to everyone. Today, there is little to say about football," they stated.
CEO Damien Comolli added, speaking in English: "We lost three points, but Italian football lost much more. What we saw on the pitch was a real injustice. We feel sorry for the fans, because tonight we were not able to compete on equal terms."