As of today's standings the Heat have the #2 seed and the Pacers the #1.
That means the Heat as of today would have to go through the Bobcats, Raptors, or the Wizards before the ECF. Pacers would have the Hawks, Bulls, and Nets before the ECF.
Yes the Heat would like to get home court with the extra home game, but it might be worth it too rest LeBron and Wade to keep them fresh for the playoffs. With 4 games back from the Pacers, this might be a good idea with about 12-14 games left for all.