They have a better record through the first 31 games this season than they had last season...
Could that be because of how much worse the Eastern Conference is? I agree with geneh in the sense that the Heat don't look as dominant to me as they did the past 2 seasons.
I think it may be possible that the Heat aren't as good as they have been the past couple of seasons but have a better record because most of the teams in their conference are worse.
It would be understandable if the Heat aren't as good too, because going to 4 straight finals is an incredibly difficult thing to do.