It makes zero sense for the PLD class to have three different skills for AoE

[Shurrikhan]

Just borrow WoW's paladin consecration ability. AoE attack with enmity.

Seems like we kind of have that already with CoS, if it simply left the ring of swords in the ground and periodically damaged upon area-entry any enemies not already afflicted by CoS's DoT.

The problem is you want to be able to have burst threat during the gather more so than during the AoE mow-down itself, more often than not, and thus anything stationary tends to go to waste.

...Reminds me of the days when a tank would stop his pull, so I'd drop Flaming Arrow, only for him to take off again a couple GCDs afterwards...