The refs don't run a full IK solution (it was way too expensive on the CPU to add 7 more characters running IK) so that means they can't do procedural awareness. They do track their targets though (i.e. the line play for the head ref, the ballcarrier for the line judge, etc) with a simpler system and it looks pretty solid. IMO it's not as good as PA, but they definitely don't look like robots...they follow the ball and their correct assignments.