I am NOT saying Moment of Glory is by any means a good power, but it does come in real handy in a few, exclusive, pvp situations.
I was in Warburg today, and got into it with a Dark/Dark brute or Dark/Invuln (can't remember which). After a good 5 minutes of fighting we were both worn down to the bone with little HP and little End. Dull Pain and instant healing were both about to go and he landed a heavy shot on me after I used my heal. I was left with little over 25% health at which point I activated Moment of Glory, and beat him.
If I had not of had moment of glory I would have lost to him by a longshot as he healed back to half health when I activated MoG. Although it may not be "I activated teh MoG now I pwnz joo nubcake azz," it can save you if you have nothing else to throw out.
I do highly agree though that in its current state, it isn't up to par with its SR and ninjitsu counterparts. I just wanted to point out that it can still come in handy, just not nearly as often as Elude, etc.