Love Kim Dotcom or hate him, you have to applaud his tenacity in defending himself. When he was arrested in 2012, I don't think anyone remotely imagined he would still be battling, and, in many regards, winning against the US Government.
It's been a mix of luck, US Government mishandling the case and the tenacity of Kim.
Don't forget the local (NZ) mishandlings.
I personally think that the case should be dismissed because the legal proceedings went on for so long and were plastered with rights violations - such as illegal surveillance, property prematurely transferred to a foreign country.