Keeping up Blood of the Dragon: higher DPS. Losing it? Forced lv 50 rotations. In a high end fight, problematic if frequent.
Keeping up Enochian: higher DPS. Losing it? Forced lv. 50 rotations. In a high end fight, problematic if frequent.
DPS Stance for tanks: higher DPS. Not using it? Increased damage taken. In a high end fight, problematic if you stay in it and don't use cooldowns.
The old Cleric Stance: When Yoshi P himself says "I hate Cleric Stance", you know it's an issue. One that was fixed for that very reason.

Risk: making a mistake and/or not fully or properly utilizing said skills above.
Reward: higher damage dealt for properly utilizing said skills above.
My point stands.