The OP's subtle sexism is disappointing. So, you suppose this game is dumbed down because its...supposed to appeal to moms instead of young males? Hmm. I wonder what might be your age and gender?
And once again I have to wonder what the hell games so-called hardcore fans have played. SimCity 4 is the only game in the franchise that's particularly cold. All of the other games relied on very colorful, "cutesy" graphics and were full of cheap jokes and hilarious puns. I really don't understand the insistance among some fans that the SimCity franchise is this sort of cold, staistical, hardcore series. That's true of SimCity 4 and SimCity 4 alone.
I think it's clear who this game is meant to target - just about everyone. EA wants this game to have a very broad base, just like The Sims. That means a friendly art style, an intuitive interface and social connectivity, which is what we're seeing.