Okay, I think we can officially conclude that game 4 of the regular season was representative of this matchup, not the first 3.
It was representative of Jermaine O'Neal not playing enough minutes + getting a lack of contribution out of Rondo (due to form then, today = foul trouble).
If that continues, this series is over. Miami will win and win handsomely.
Although I can't think of any reason to assume that will continue throughout the series.