I just can't imagine standing still for long enough to cast this.
Even in ab's, the shrine is already captured by the time you manage to get the spell off
I think this is the single most useless spell to put in a skill bar- in retrospect, perhaps there are others, but it would be hard to beat. The only way to use it is in conjunction with an "insta-cast" glyph at the cost of either all energy or an additional 30s recharge (read 60s + 30s recharge = a minute and a half)
Even at 3s cast time, it used to be hard to cast without being interrupted. Now it's impossible. Even against PvE mobs.