I certainly have no interest in defending EA
Having said that, you're question is easy to explain. Sports games don't have luxurious 3 year dev times like other games out there, they have to ship each year no matter what. The first 360 title had to be completely converted from old gen. So that's old gen code, old gen art assets, old gen game ideas, old gen audio, etc, etc... Switching all this over to next gen in one year is a massive undertaking, hence why the first pass, or even the first two passes of a sports game on a new generation of hardware often seem incomplete. The PS3 version gets to benefit from this by arriving later, since it will have likely been converted from 360 assets instead of old gen assets. So much of the hard work has already been done.