Cooper was announced on Tuesday as stand-in captain for the team's next game against Melbourne Heart, but remarks made by Bleiberg at the press conference drew the ire of club management.
It is believed the club's billionaire owner Clive Palmer, who made the decision to hand Cooper the captain's armband on debut, was not happy with Bleiberg saying that it was a 'ceremonial' appointment.
Club chief executive Clive Mensink delivered the news at the club's training base at Carrara on Thursday morning, saying United made the decision to appoint Cooper as captain 'seriously'.
"Reason being is the club does take the matter seriously in appointing Mitch as captain," Mensink said.
"The decision was not made lightly or jokingly and I think it's being disrespectful, some of the comments towards Mitch and the club in regards to his appointment... that it was ceremonial.
"We haven't made it that way at all. It was a decision made in all seriousness with the future in mind. It was an opportunity to provide more leadership for the future."
Gold Coast United are currently at the bottom of the league with seven matches left to play till the end of the season.