I went thru the list and I only see 3 Hawkeyes on it.....Kittle, LaPorta, and Wirfs.
EDIT - I see what the difference is. The list quoted above from X is a list from Pete Prisco, a writer from CBS Sports, not the actual list voted on by players. The Prisco list has 5 Hawks, but the "real" list voted on by players has 3.