What is a key reason for referees to use official signals defined in the FIBA Basketball Rules?

Referees use official signals defined in the FIBA Basketball Rules primarily to maintain consistency in officiating. Consistent use of signals helps ensure that players, coaches, and fans understand the calls made during a game. This uniformity allows for clearer communication on the court, reducing confusion and misinterpretation of the referee's decisions. When all referees adhere to the standardized signals, it fosters a fairer game and upholds the integrity of the sport, allowing for smoother gameplay and less disruption. This consistency is vital in maintaining the flow of the game and reinforcing the rules that govern basketball.