I also use Shield of the Dunedain instead of Oathies. Have been for like a year already.
There are tons of situations where I can save the tank, or save a champ who pulled more aggro than they can handle, or save the healer!
Effectively it seems to help prevent wipes a lot, because if the tank or healer goes down things can go south pretty fast.
In the 'Moors it's great for saving someone who is running away and getting pew pew'd as they run. Doesn't prevent a full pounced gank-fest though : P
It makes sense to me, and would be good if we could at least pop SotD on anyone in our raid.
History became legend, and legend became myth, and some things that should not have been forgotten were lost...