"The NBA is not permitted to unilaterally impose new economic discipline against the players without first bargaining with the union," union executive director Billy Hunter said. "We believe that any monetary penalty for an act of this type is inappropriate and without precedent in our sport or any other sport. We will bring appropriate legal action to challenge what is clearly a vague and arbitrary overreaction and overreach by the commissioner's office."

http://www.nba.com/2012/news/10/03/nba-sets-flopping-penalties.ap/index.html?ls=iref:nbahpt2

The NBA said flopping will be defined as "any physical act that appears to have been intended to cause the referees to call a foul on another player."
"The primary factor in determining whether a player committed a flop is whether his physical reaction to contact with another player is inconsistent with what would reasonably be expected given the force or direction of the contact," the league said.

בקיצור, כרגיל, חוק עם כוונות טובות שמנוסח בצורה בלתי אפשרית לחלוטין. הרי כל נפילה אחרי עבירת תוקף עונה כמעט לחלוטין על ההגדרה הזו. זה גם רק מחזק את הצורך של הבדיקה להיעשות בדיעבד ולא בלהט המשחק.