I honestly don't get the devs logic behind this. I mean in FFXI protect and shell has the same if not more of a effect as FFXIV's does and those lasted far longer so why not do the same in FFXIV? I mean with how fast paced the battles tend to be it's somewhat annoying having to stop and cast the spells over and over(what is basically every battle unless you are fighting something really weak that dies quickly).