Why are people bashing the Heat about the Celebration last night?

Absolutely nothing wrong with celebrating. Everyone knows, even haters, know it was a huge step. Boston is perhaps their toughest opponent and biggest nemesis of not only the team but individual players like Wade and James. I also heard tons of trash talking thrown at the Heat, about how they can't beat Boston in regular season and how Wade struggle to score against them and so much more. All the so-called expert analysts counted them out before the series. And honestly, I thought so too with all odds against the Heat until I saw the outcome of 1st game of the series. So I ain't tripping when they celebrated, James apologized to the Cavs again, and saluted Boston. Yet, all I'm hearing from haters really, is that they were celebrating.... Seriously? I guess like you said, nitpicking, finding something to hate the Heat.