A tie is not something that will ever happen in a regular season game. If this had been during the regular season, extra innings would have been relied on to complete the contest. As it stands, the powers-that-be consider it of far greater importance to not overwork the Miami Marlins and Washington National players in camp just to crown a winner in an unimportant game.
That, of course, was a sarcastic statement. The Marlins still have 55 men in camp, and a little extra baseball would give more of them all-important reps outside of intra-squad scrimmages.