I don't know concretely if it's due to superstition, but any time a new rule is implemented into the NBA or a new piece of equipment or a new technology, there is always a transition and adjustment period by players and coaches and anyone involved with the game.
“God may not play dice but he enjoys a good round of Trivial Pursuit every now and again.”
“Leadership consists not in degrees of technique but in traits of character; it requires moral rather than athletic or intellectual effort, and it imposes on both leader and follower alike the burdens of self-restraint.”