Test question

[just another ref]

True or false: Holding or moving a hand or hands in front of the face of a player who has the ball, by an opponent who is in a legal guarding position, constitutes unsporting tactics and is illegal.

I kinda get a conflict from rulebook and casebook on this.
10.3.7 says yes it is, but 10-3-7 specifically mentions purposely obstructing vision by placing hand(s) near the eyes.

I said false, my partner said true. I hereby use a lifeline and poll the audience.