Switzerland knows which way the wind is blowing. They're not about to take the hit for him, neutrality or not.
As for the Swiss being equal opportunity offenders, that's true to an extent, but everything Europe does with Polanski is a big "fuck you" to the US, and our backward justice system that somehow thinks that drugging and raping a 13 year old girl is a more important character trait than making good movies.
The Swiss refused to extradite Polanski because, so said the judge, it was not clear whether he had already completed his sentence or not, and Switzerland doesn't extradite people who have already finished their sentence.
Fair enough.
Polanski fled the U.S. the day before sentencing. Oh by the way, fleeing the country before being sentenced for a crime you pled guilty to is also a crime.
So yeah, fuck Switzerland.
Also, fuck France, who wouldn't extradite him, and fuck England, who, and this is rich, allowed Polanski to sue Vanity Fair in British court despite the fact that Polanski could not go to England or they would extradite him to us. The British courts allowed him to testify in his trial via video, a procedure they invented to accommodate him.