You're missing my point: I don't want him to stand up in court and lecture on the nature of freedom and personal responsibility like something out of Inherit The Wind, I would just like to see him take the rap for what he (probably) did without this silly "it was the one armed man" defense.
It's not about the trial, because the trial is lost no matter what he does (regardless of whether or not he's innocent, he's going to jail, guaranteed), it's about nailing your colours to the wall and showing the rest of the world that you're willing to go to jail to stand up for the freedoms you ostensibly believe in.
Ulbricht won't be doing any of that, instead he's going to mount a defense that effectively says that his manifesto, his politics, his core beliefs, are all just something to be discarded when it's convenient.