On the web, they ask for midyears as soon as available. Why would they, if they won’t review them? If you send them, they will see them. Admissions, that is. Not sure of the alum liaison’s direct involvement.
And really, any applicant wants to maximize his chances. Not lean back. As it is, too many good candidates take things for granted.
Can you link me to where they say they only review 9-11?