How come only conservatives get blamed for dysfunctional government?

David Gregory: "What happens if it is struck down in part or in whole by a 5 to 4 decision? Would that not underscore how dysfunctional our government is, the major institutions of our government are? That is a real nightmare scenario, I think, for the political class in this country." 

Why isn't it dysfunctional if the Supreme Court only approved it by a 5-4 margin? 

"Chief Justice Roberts....he has spoken publicly about how on big controversial decisions, he thinks a 5-4 majority on the Court overtime undermines the Supreme Court. And only fuels the view that our major political institutions are too polarized. He's taken a big step here. He's going to be cheered for that by some on the Right and the Left, criticized I'm sure, as well, by some on Right."

So does this mean that the four liberal justices who voted in a block are the polarizers?