The Socceroos crashed out of the competition at the quarter-final stage as they lost out to Japan in a penalty shoot-out, prompting stories of an unsettled dressing room.
"To hear those sorts of reports were made is laughable and also comments were made but nobody put their names to it," he told Sportal.
"I think people started to look for excuses for performances. And when that happens and you don't perform well, people are going to look in all different directions and things are going to appear, nine times out of 10 it's going to be made up.
"The relationship the players have with one another is unbelievable really for a national team.
"I talk to players in my team, like Stewart Downing, who plays for England. He can't believe the relationship we have as players and the friendships we have compared to what they have in the England side."