Oct 31st 2008 6:34PM After returning to my fire mage after the patch, I was disappointed to find that Blast Wave, once of key part of the fire mage's aoe rotation is now no longer viable because of the knockback. I had not infact realized it had a knockback until the tank pointed it out. It does help in pvp, but fire was and is not a pvp spec.
So if your fire mage does Blastwave, give them the benefit of the doubt and let them know about the problem before kicking them. They have to unlearn what was once the correct way of doing things.