There's probably worse than the 47% comments in them. We already know she blamed the homeowners for the Great Recession.
Acknowledging the role that certain homeowners played in causing the Great Recession is not the same as blaming them for it, and I really doubt she would say anything too bad in these speeches. Though, that is why I'd prefer she just release them so we can be done with it.
She likely made some friendly overtures to her audience which would be completely blown out of proportion by the media and cause too many headaches for it to be worth it. As someone else said, she may dump them in the summer lull and then it'll be old news by the conventions.
I do find it amusing (though not surprising) that the media has harassed her far more over these transcripts than they did for Romney and his tax returns (or Bernie's and Trump's, for that matter.) You know, even though paid speech transcripts are not an expectation while tax returns always have been. Typical double standards from the sexist media.