I can answer this one because this is info that Mills brought up from EA Play. There was a bug in previous iterations that was causing the CPU to call plays from the wrong "play list" or something (I don't remember the term used). That's why we kept seeing all the 4-verts/draws on 3rd downs in M18 and so on. It's been stated that it has been fixed.
What I cannot comment on from the Beta is any confirmation of that fact.