Irish Setter "Windy"

Windy, the Irish Setter that won the Phili Dog Show's best in breed lives about five minutes from me, here in Ohio.  She's a beautiful dog, but I was wondering about the length of her neck.  I don't know much about Irish Setters, but her neck seems quite long.  The AKC site says that the neck should be "moderately long," but that seems to be a relative term (and sounds a bit like an oxymoron).  What are they looking for here and why?  Anyone have any input on this subject?