I suppose we need to have a trial every time a pilot is removed from duty for cause that may be damaging to the pilot‘s career? Don’t think so. The pilot has recourse through the civil courts IF he/she was removed in error or reputation damaged unjustly.
Maybe we need a trial every time the media reports the news that may damage somebody’s reputation? Don’t think so. Again, you have the civil courts for recourse.
It’s interesting though, because the pilot in question had just finished his preflight.