I don't think the power of Clemancy should be overlooked, and it is very useful with requiescat. I have never wasted MP on a heal that I didn't need as a Paladin. Using Clemancy with 30% HP left is not a waste. With a WHM it's different as you will more then likely get a BENE, and that takes understanding the game. You have to be smart with game given the circumstances. When I heal warriors it's welcome to have them heal themselves and I find it refreshing to heal warriors. The difference from a good warrior and a GREAT warrior is that the are "scrappy" and VERY hard to go down. I love it when I play warrior and take a good chunk of damage, pop Equilibrium, nascent with Inner Chaos x2. And my healer (who is my IRL friend knows my limits) and they just keep DPSing, and knows when I would be in any real danger.
NOT the case for paladin with clemancy. Pop Requiescat and insta heals with at least 3-4 casts.....just incredible heals that healers SHOULD recognize to squeeze in DPS. My IRL healer friend knows this when I play paladin and takes advantage of it to DPS. He just notices when I'm building my MP back and also low on HP....then he uses BENE. He is a smart healer and very efficient.