But they are in control of what conduct their referees are to be using while on the pitch because they were hired to do their job and not joke around acting like it is in the street with their pub friends. This language should not be tolerated one bit because since there were no crowds anybody can hear anything that is said.
And from what the video clips show and can be heard they are saying it in their foreign language which all referee's are to speak english during the matches so no misunderstanding is to happen, like it had with this match.