It has been posted on EJ after the change went live.Also even the blizz description seems missleading if you think what the talent was doing from the beggining you will see it only affects WoG.
Eternal Glory: The chance to not consume Holy Power from this talent now also applies to not consuming the clearcasting effect generated by Divine Purpose.
It states that in addition to the chance to not consume HoPo (which only affects WoG) they also made it to have a 30% chance of not consuming the DP proc (which affects only when you use WoG).Also they have added a 15sec icd on EG after that change if i remember correct so you wont be able to chain WoG procs.