I didn't play too many of these trials, so I can't help too much. The issues I see with the Wiki's trial articles is that they are very mechanics driven - they have little to no information on the story behind why things are actually going on. That's more a symptom of the nature of how they were played in-game, but it is a real shame for those of us interested in the storyline. While the guides that exist (like the Minds of Mayhem Trial) give some context, there's nothing about the actual "contacts" and dialog spoken.
I know it may be hard to find, but does anyone have screenshots of the dialog pop ups and mission objectives and things like that from the trials? They were all so fast paced that most people ignored that stuff, but I'm hoping there's at least a few people with screenshots or something, or maybe some info hidden on the Wiki somewhere.