[pluma]

Basically, in order to make a case against being extradited, you'd have to convince the court that you wouldn't be given a fair trial in the country making the request.

His problem wasn't that he wouldn't receive a fair trial, his problem was that the laws themselves are silly (but not obviously immoral or excessive). If he had faced a corporeal punishment (death penalty or mutilation), he might have had a case.

Of course the ideal path would have been facing the hearing and then pleading guilty when he was extradited, but the plea bargain likely required him not to challenging the extradition and his chances for successfully doing so were likely far too low to take the gamble.