i would assume he's saying he got the fat envelope offering admission. he's probably putting it like he did because he's under the averages.
our D3 soccer coach at my LAC told me if i had any admissions trouble he had some say on marginal cases, but i doubt he needed it on me, and i heard back rapidly, so i don't know personally how this plays out.
couple things, i think the special effort is usually a limited amount of slots AFTER they have admitted a bunch of people as ED or on merit. if you are barely under their unweighted GPA you might make it on your own steam, as you might still be in the middle 50%. or if you need any coach help, it won't be a long discussion.
and bear in mind due to cost and other factors there is a difference between acceptance and yield. amherst if i read right is like 7% acceptance but 41% yield. which means 59% accepted go someplace else. so they are accepting slightly more than twice the entering class size assuming some will have other ideas.