Heh, yeah. I think nerfing something because it auto-kills minions is a bad idea, simply because so much out there already auto-kills minions.Wizard spells that automatically kill minions?! They must be nerfed!
I can understand how having minions be virtually ignored by some builds and some parties can be a bad thing for the game, but... honestly, guys, that ship has long since sailed. And Wizards are hardly the main culprit. Certain auto-damaging PP features and Epic Destiny features essentially make a character immune to minions (see Archlich, just off the top of my head. "Come within 3 squares of me, you're dead").