Well, we could say that we used Oneiromantic Pearls again, like when the repeatable quest for getting loot from Noah from the Crystal Tower 24 man, explains us reliving the events in the raid in our mind. Of course, there are none, but it's mechanisms are there.

Also, the holodecks from the Warring Triad are there for the extremes, no reason why we shouldn't have been able to holodeck the normal version... though again, there's no in game thing that states that we do.

"Relive/review your memories" has sorta been their cop out answer for repeating things that storyline wise aren't repeatable for real. They're getting pretty meta with it not, with Gangos relics.