I agree with this. Going for two is pretty bush league. But also, what goes around, comes around. USC won't be down for long, and I'll bet Pete Carroll doesn't forget this.
It reminds me of a few years ago when we were playing Auburn. They were up by 28 in the 4th quarter, and we actually stopped them on a drive on about our 35 or so. Tommy Tubberville brings out his FG team, then proceeds to run a fake field goal for a huge gain and, a few plays later, another TD. I actually would not have had a problem with him leaving the offense on the field and going for it, but a fake field goal? Totally classless. (And yet another reason I can't stand Tubberville)