Yes, it is possible that the 1926 trial never happened. Your FAIRLDS cite seems to hypothesize that it never happened and then assume that it did happen. And I am not concerned with whether it was a trial, pretrial, or examination. FAIRLDS states that it was not an actual trial but then continues to call it a trial.
Oliver Cowdery described the event, falsely claiming that Joseph was aquitted. But the LDS are fond of pointing out that Oliver is not trustworthy as a witness (ahh, I love irony). If I am not mistaken, the event occurred before Joseph and Oliver were supposed to have met, so Oliver is likely reporting what Joseph told him later.
The FAIRLDS article is full of contradictions. For example, to be a “disorderly person” one has to be unemployed while practicing crystal-ball gazing. But Joseph wasn’t unemployed! During the off-season months for migrant farm hands, he was employed by Stowell as a crystal-ball gazer! That’s like saying that an unemployed man running a con isn’t guilty of the con, because he is receiving a salary from his mark.
Yes, there were others in that part of the country at that time who practiced divining and glass-looking. No one is claiming that Smith invented the concept. In fact, it’s clear that the practice was common enough that it had become a nuisance and a law was passed against it. The simple truth seems to be that before he became a religious prophet, Joseph Smith spent some time practising magic, as was common among farm workers in winter. Some people believed in magic, some did not, some were willing to pay Smith a salary despite no results, and some were annoyed that their father or uncle was throwing his money away.
Shortly after Smith was fined for pretending to teach people how to locate buried treasure using magic rocks and satisfy the demands of the spirits guarding the treasure, Smith was visited by a spirit who guards a buried treasure (including some magic rocks), and after five attempts during four years, he was able to satisfy the demands of the guarding spirit and obtain the treasure. Unfortunately, no one else ever saw the treasure. Well, there were 3 + 8 witnesses, but they actually describe envisioning the gold plates with “spiritual eyes” or hefting a heavy object under a sheet, and that doesn’t matter anyway because Smith says they are all liars. So at least for the purpose of this discussion, we can assume that no one saw the treasure before the guarding spirit Moroni carried them up to heaven.
So the point of discussing the 1826 event isn’t really to villify Joseph Smith, but to show how his background as false gold-digging magician segued into his later claims of finding the Gold Plates that became the Book of Mormon.
Or really, the point of the discussion is “How has Mormonism survived modern scrutiny,” to which I would reply that most Mormons are blissfully unaware that there is anything needing scrutiny. Those few who know the history arbitrarily dismiss anti-Mormon claims as “pathetic criticisms” because the Holy Ghost tells them that the LDS Church is true and nothing else matters.