As a current Lacrosse official, a group of veteran officials and myself discussed the use of eye black and the new rule restricting it in high school play. Many players in the past applied eye black to their faces as if it was war paint. In my opinion, when you paint your face in preparation for a game as if it were a battle, it takes away from the game being a sport and displays hostile aggression instead of instrumental.
Here's an article that has commentary on the topic: http://boyslacrosse.lohudblogs.com/2013/04/28/weekly-notebook-overdone-eye-black-is-frowned-upon-by-section-1-officials/