The Riley-coached Heat were a 3 seed in 2001 and got swept by the Hornets. That was back when the 1st round was only 5 games, so a sweep only took 3 games.
IMO, a 4-game sweep is much more difficult than a 3-game sweep.
Thank you Gordon for the accurate info and completely agree with the 4 vs 3 game sweep. That extra game and each team with at least 2 home games. Heat getting swept as a 3 seed means that they had 2 home games though...dem feelz.