Actually failed Steps of Faith last night on my NIN for the first time in the history of me playing FFXIV. Just stared at the screen in disbelief as the cutscene played and my character looked on angrily.
Now, I am no pro player. Far from it. In fact, I'm a filthy casual. But Steps of Faith is one of the easiest trials in the game, in my opinion. Here's where I think it went wrong. Before the fight started, the tank says we should man the cannons and round up all the adds in the middle. Again, I'm no pro but I thought that was odd. Every single time I've run this trial, EVERYONE focuses the big dragon and ignores everything else. In fact, I remember one of the first times I did it I ran to the cannons and someone said in party chat "Just focus the dragon". It's basically just a DPS race to burn the thing down as fast as possible.
For long stretches of the fight last night, I found I was the only one on the dragon. Everyone else was dealing with adds, on cannons, running around...it was so weird to me, but I didn't say anything. The dragon just kept strolling along like a pimp walking down the street, not losing nearly enough HP, and I kept thinking, "I don't think this is right." I zoomed my camera out and saw the end of the path coming up and then thought, "Holy Sh!# I think we're actually gonna fail this!"
Anyway, I could be wrong about everything I typed above. Maybe the correct way to do this trial is to fire the cannons or whatever. But every time I've done it in the past we just focus fired the boss and dropped him as quickly as possible.