So Clinton avoided indictment. Extreme carelessness didn't quite reach the bar of "gross negligence". Probably the classification system is very byzantine, and a lot of people make mistakes mishandling info, and if we prosecuted them all, we'd be frog marching platoons of civil servants off to jail, and it would just be ridiculous. Best to prosecute the extreme offenders, which Comey apparently didn't think Clinton was.
Fair enough, I stand by Comey's judgement. He's a Republican, has integrity, has been in public service for a long time. It's very unlikely Comey, at this point in his life, would suddenly morph into a corrupt spineless pol that Bill Clinton and Loretta Lynch could put the screws to and bend to their will.
That being said, Comey's news conference was brutal. The GOP, as is its nature, is busy snatching defeat from the jaws of victory. I think a smart political party with a non-crazy candidate could have made the FBI report fatal to Clinton. Instead, the GOP, and it's crazy nominee, are frothing at the mouth about conspiracies, and the reasonable GOP members, who are trying to point out that the FBI report is itself a scathing indictment of Clinton, are being drowned out by the crazies.
So Clinton lives to fight another day, and will probably beat Trump.