Oh, you haven't experienced endgame on him is why.

At level 50 or so, your soloing slows down to near-Paladin speed. Whack, whack, whack, and pray for a few windfury procs. If you excessively Shock, you'll drink after every mob.

In endgame instancing, you drop totems and add a very minor amount of DPS, while keeping a mana reserve for healing, in case shit goes down.

In Molten Core, it's even worse. You don't shock, and you rarely Melee. You're a gimped healbot with totems.

This is why I have a 60 Mage now, too.