Monk 's Riddle of Fire feels awful to use
Monk has always been a Job that thrived on the flow of it's abilities. More so than other jobs, when you played it, you felt fast and fluid. The constant re-positioning, the buildup of attack speed, you may not have hit the hardest per shot, but it felt incredibly clean to play, and that was the appeal for myself and thousand of other players for the past 4 years.
One of the biggest selling points for this expansion was the idea that the Dev team would "breathe new life into existing jobs", which, they did with most classes. Some classes, however, such as Monk, saw the life sucked out of them. Deep Meditation and Brotherhood are fine, if a little under-tuned. Riddle of Earth would be useless if not for the Greased Lightning reset, so it's at least passable. Riddle of Fire, however, if awful. Sure, it's a DPS increase, but the attack speed penalty kills the flow of the class, and every time one uses it, they find themselves wanting it to end as soon as possible.