In the quest Stonefather's Favor ( Stonefather's Boon - Quest - World of Warcraft (wowhead.com) ), the quest reads: "Grant Stonefather's favor to 12 Earth Defenders" . But, when using the Standard of the Stonefather quest item ( Stonefather's Banner - Item - World of Warcraft (wowhead.com) ), any defender sometimes selects it and sometimes does not (that goes for those who they don't have the buff).
Importance level 8/10
Video of how it works
Importance level 8/10
Video of how it works