No. I wouldn't describe it like that.

Most of the superdelegates are elected Democrat politicians themselves. Many are up for reelection this year themselves.

A superdelegate who commits to a candidate early is taking a political risk depending on the political and/or demographic makeup of their district. That is why many will not openly commit to one of the candidates this year even though they are being pressured very heavily.

Say for example you are a Democrat Congressman and you are in a potentially shaky district... it could go either Democrat or Republican. You might be inclined to not commit to a candidate in a close race like this year. That would be the smart thing to do. In a district like that, if you do make an early commitment and some damaging bad news comes out about the person you openly supported and committed your convention vote, it could mean you losing an awful lot of votes in your reelection for Congress. Maybe even losing the election altogether.

Say you came out and committed your vote to Obama. He is a flawed candidate and a huge risk. Then some video comes out showing Obama in the audience listening to Jeremiah Wright spout hate about white people being evil and the United States being an evil country. All the while Obama nodding his head and clapping his hands in agreement with everything being said. Your campaign would be at risk.

(A video just like that of Obama is out there and will be making an appearance down the road)

A lot of Democrats this year are trying to bypass even their own party rules by forcing these superdelegates to make early commitments. As I have already pointed out, that is a risky prospect with a flawed candidate who little is known about and what is known looks suspect.