You don’t get to appeal a not guilty verdict right or wrong its done forever. A mistrial only happens before a verdict is reached so either side could be looking for justification for one if they believe that they stand to lose the case but the judge has to find there is cause.
We don’t need a billion to become farmers either in fact as now only a fraction of a percent need to. We can be less wasteful without Having any additional people involved in ag. If anything its liable to be more automated not less.