Not Miami's fault, the playoff system will be realigned in the very near future. The teams with the overall best records will be in the playoffs. Adam Silver should be addressing this in the off-season.
Everyone knows it isn't Miami's fault, but it is still the truth....their regular and post season matchups are much easier. Although, SA swept twice and lost only two games during the 2013 post-season in the more difficult West before getting to Miami in the finals and losing in the bitter end of game 7. That said, no matter how "easy" the east roster may be for the Heat they still took down the West Conf champs.
I grew up in SA, live and work in it today and have watched the Spurs my entire life and although I KNOW they can beat Miami if SA does get back to the finals (against the Heat) it'll be another hard, hard, hard fought 7 games series. We're not even close to that though LOL.