Do 1 hour abilities have a place in ARR?

[Kirito]

FFXIV: ARR's Summoner's 2hr ability - Eternal Breath.

http://www.youtube.com/watch?v=8aLu4...layer_embedded

/makeasandwich+readanovel+takeashower - Still not done yet?

I seem to have completely misunderstood the thread. I thought the OP meant a buff that lasts for one or two hours like in other games not a move that last one or two hours. Honestly I don't like that idea because what if you use that against a boss like the chimera to finish it off and the caster dced or someone in your party dced while waiting for the move to finish.... they would lose the loot from the chimera and possibly have to redo the dungeon if it was a part of a mission