Also, they have claimed in the literature that Rutherford was "exonerated" when that wasn't the case. His conviction was overturned on legal procedural grounds and the Justice Department decided not to try the defendants again since the war was over and there was somewhat of a policy of amnesty toward those accused of sedition during the war. Even some who were not successful on appeal, like Eugene Debs (a socialist leader who had denounced the war) had their sentences commuted after the war.
Although the conviction doesn't count and he is presumed innocent since not proven guilty, "exonerate" means to affirmatively prove innocent, such as might happen with DNA evidence. Rutherford and his cronies could have been tried again and people get tried again and convicted all the time after an appeal. The way the WTS has related the history of this is somewhere on the spectrum from misleading to an outright lie and probably closer to a lie.