I take it you missed the fact that, two posts before yours, a moderator asked people to drop the healer vs DPS roll priority argument.
Originally Posted by Viper007Bond
assuming I'm right, I'd like proof from someone smarter than me saying it's better for DPS than heals.
I totally agree. The reason is that a healer can somewhat waste spellpower in overheal, whereas a dps cannot actually overdps. I'd be happy go into details but it seems that long posts are not possible.