I think everyone jumps on the EA bandwagon a little too heavily these days. I mean the Sim City launch wasn't great by any means but I don't think it was any worse than Diablo 3's.
You're right, it was equally as pathetic an attempt at marketing a perfectly acceptable model for a single player game as one with online mulitplyer DRM requirements that more often then not will end up ruining a players experience. There are no potential benefits to having SimCity or Diablo consistently online as far as I can tell.