If you think your contribution is nothing, you're an idiot. There is little difference between a SCH and a pet-less SMN, certainly next to none pre-50. Likewise there is little difference between a CNJ/WHM's damage output and that of a DPS without cooldowns. It's due to a magic little thing called Cleric Stance.

If you think healer contribution is irrelevant just because it's less than an actual DPS (evidently you don't care how much less), then you may as well just stop using cooldowns on DPS and put away your weapon on tank when you have established a hate lead.

Time saved is time saved is time saved. 5 minutes is not a lot to you but it may be 10% of someone's daily play time. Get more stuff done, get it done efficiently. What is wrong with wanting this at the "price" of a miniscule amount of effort?