Oh, I have a pretty good idea of what it was they might have been smoking.

I think this really points more to a problem with how the courts work. Its a lawyers' game. Someone breaks the law and the Prosecutors see how far they can push the charges and "win" if they can keep the Defendant's lawyer from getting the charges and sentences reduced.
Truth has little or nothing to do with it. The biggest mistake these 3 made was assuming that the trial had anything to do with the truth. They admitted to being there and doing the things that they did. Then let the prosecution redefine what "they did" into the harshest terms possible. I can only assume that their lawyer was smoking the same stuff they were to have let that happen and for the jury to have agreed with the prosecution.
But that's the "justice" system. A friend of mine went away for a few years under the new terrorism laws. He was being loud down at a beach too close to military land and it was MP's who came to investigate. Being drunk he didn't take kindly to their intrusion and was belligerent - though not violent. They cuffed him and searched his car. They found a fake japanese tanto (the kind that "can't" be sharpened) that he used as an opihi knife and an M80 firecracker left over from New Years that had rolled under the seat. He was then arrested by HPD who had arrived on scene.
He was convicted of having an "assault weapon" (the knife) and an "explosive device" under new, anti-terror definitions that put what was essentially drunk and disorderly conduct into the category of potentially being a terrorist. 15 years ago he would have gotten a slap on the wrist and a night in the tank. As it was he got 5 years but was out in 3 with good behavior. Had trouble with parole, though, and went back in for a year.
All for being drunk at the beach with a dull tanto and a firecracker in the car.